Declare
cursor CUR_TAB is
SELECT rowid,a.*
FROM accountaddressdetail11 a WHERE CODE LIKE 'In%';
l_b number:=0;
Begin
for CUR_REC in CUR_TAB
loop
Begin
if CUR_REC.TEL2 is not null then
if CUR_REC.TEL1 is null or LENGTH(TRIM(CUR_REC.TEL1)) is null then
update accountaddressdetail11 set TEL1=CUR_REC.TEL2,TEL2=' ' where rowid=CUR_REC.rowid and TEL2=CUR_REC.TEL2 ;
elsif CUR_REC.TEL3 is null or LENGTH(TRIM(CUR_REC.TEL3)) is null then
update accountaddressdetail11 set TEL3=CUR_REC.TEL2,TEL2=' ' where rowid=CUR_REC.rowid and TEL2=CUR_REC.TEL2;
elsif CUR_REC.MOBILE is null or LENGTH(TRIM(CUR_REC.MOBILE)) is null then
update accountaddressdetail11 set MOBILE=SUBSTR(CUR_REC.TEL2,1,12),TEL2=' ' where rowid=CUR_REC.rowid and TEL2=CUR_REC.TEL2;
elsif CUR_REC.PAGER is null or LENGTH(TRIM(CUR_REC.PAGER)) is null then
update accountaddressdetail11 set PAGER=SUBSTR(CUR_REC.TEL2,1,12),TEL2=' ' where rowid=CUR_REC.rowid and TEL2=CUR_REC.TEL2;
end if;
end if;
Exception
when others then
null;
End;
end loop;
End;
-----------------------------------
Tuesday, July 20, 2010
Bulk Updation: update EmailCC column
Declare
cursor CUR_BULK_UPDATE is
SELECT rowid,a.* FROM ACCOUNTEMAILDETAIL a WHERE CODE NOT LIKE '%M';
l_b number:=0;
Begin
for CURSOR_RECURSION in CUR_BULK_UPDATE
loop
Begin
if CURSOR_RECURSION.EMAIL is not null then
update ACCOUNTEMAILDETAIL set CEMAILCC= (trim(LOWER(CURSOR_RECURSION.OOWNCODE))) ||'@uniconglobal.com' where rowid=CURSOR_RECURSION.rowid and
CURSOR_RECURSION.EMAIL ! = ' ' and CURSOR_RECURSION.EMAIL not like '%@uniconglobal.com%';
end if;
Exception
when others then
null;
End;
end loop;
End;
/
COMMIT;
-----------------------------------
cursor CUR_BULK_UPDATE is
SELECT rowid,a.* FROM ACCOUNTEMAILDETAIL a WHERE CODE NOT LIKE '%M';
l_b number:=0;
Begin
for CURSOR_RECURSION in CUR_BULK_UPDATE
loop
Begin
if CURSOR_RECURSION.EMAIL is not null then
update ACCOUNTEMAILDETAIL set CEMAILCC= (trim(LOWER(CURSOR_RECURSION.OOWNCODE))) ||'@uniconglobal.com' where rowid=CURSOR_RECURSION.rowid and
CURSOR_RECURSION.EMAIL ! = ' ' and CURSOR_RECURSION.EMAIL not like '%@uniconglobal.com%';
end if;
Exception
when others then
null;
End;
end loop;
End;
/
COMMIT;
-----------------------------------
Wednesday, July 14, 2010
Oracle 11g Standby Database
Oracle Standby database on same machine (for testing)
-----------------I. Before you get started:-------------------
1. Make sure the operating system and platform architecture on the primary and standby systems are the same;
2. Install Oracle database software without the starter database on the standby server and patch it if necessary. Make sure the same Oracle software release is used on the Primary and Standby databases, and Oracle home paths are identical.
---------II. On the Primary Database Side:---------------------
Enable forced logging on your primary database:
Select FORCE_LOGGING from V$DATABASE;
ALTER DATABASE FORCE LOGGING;
1) The size of the standby redo log files should match the size of the current Primary database online redo log files. To find out the size of your online redo log files:
SQL> select bytes from v$log;
BYTES
----------
52428800
52428800
52428800
2) Use the following command to determine your current log file groups:
SQL> select group#, member from v$logfile;
3) Create standby Redo log groups.
My primary database had 3 log file groups originally and I created 3 standby redo log groups using the following commands:
ALTER DATABASE ADD STANDBY LOGFILE GROUP 4 SIZE 50M;
ALTER DATABASE ADD STANDBY LOGFILE GROUP 5 SIZE 50M;
ALTER DATABASE ADD STANDBY LOGFILE GROUP 6 SIZE 50M;
4) To verify the results of the standby redo log groups creation, run the following query:
SQL>select * from v$standby_log;
5) Enable Archiving on Primary.
If your primary database is not already in Archive Log mode, enable the archive log mode:
SQL>shutdown immediate;
SQL>startup mount;
SQL>alter database archivelog;
SQL>alter database open;
SQL>archive log list;
6) Set Primary Database Initialization Parameters
Create a text initialization parameter file (PFILE) from the server parameter file (SPFILE), to add the new primary role parameters.
A) Create pfile from spfile for the primary database:
SQL>create pfile='C:\app\kshitij\product\11.1.0\db_1\database\INITORCL.ORA' from spfile;
B) Edit INITORCL.ora to add the new primary and standby role parameters:
select * from v$parameter where name like '%log_archive_format%';
select * from v$parameter where name like '%standby%';
select * from v$parameter where name like '%remote_archive_enable%';
select * from v$parameter where name like '%log_archive_dest_state_%';
select * from v$parameter where name like '%convert%';
----------------------INITORCL.ORA------------------
orcl.__db_cache_size=536870912
orcl.__java_pool_size=16777216
orcl.__large_pool_size=16777216
orcl.__oracle_base='c:\app\kshitij'
orcl.__pga_aggregate_target=301989888
orcl.__sga_target=939524096
orcl.__shared_pool_size=352321536
*.audit_file_dest='c:\app\kshitij\admin\orcl\adump'
*.audit_trail='db'
*.compatible='11.1.0.0.0'
*.control_files='c:\app\kshitij\oradata\orcl\control01.ctl','c:\app\kshitij\oradata\orcl\control02.ctl','c:\app\kshitij\oradata\orcl\control03.ctl'
*.db_block_size=8192
*.db_domain=''
*.db_name='orcl'
*.db_unique_name='orcl'
*.LOG_ARCHIVE_CONFIG='DG_CONFIG=(orcl,orclsby)'
*.db_recovery_file_dest='c:\app\kshitij\flash_recovery_area'
*.LOG_ARCHIVE_DEST_1='LOCATION=c:\app\kshitij\flash_recovery_area\orcl\onlineLOG VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=orcl'
*.LOG_ARCHIVE_DEST_2='SERVICE=orclsby LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=orclsby'
*.LOG_ARCHIVE_DEST_STATE_1=ENABLE
*.LOG_ARCHIVE_DEST_STATE_2=ENABLE
*.LOG_ARCHIVE_FORMAT=%t_%s_%r.arc
*.LOG_ARCHIVE_MAX_PROCESSES=30
*.FAL_SERVER=orclsby
*.FAL_CLIENT=orcl
*.STANDBY_FILE_MANAGEMENT=AUTO
*.DB_FILE_NAME_CONVERT='C:\app\kshitij\oradata\orclsby','C:\app\kshitij\oradata\orcl'
*.LOG_FILE_NAME_CONVERT='e:\app\kshitij\oradata\orclsby','C:\app\kshitij\oradata\orcl','e:\app\kshitij\flash_recovery_area\orclsby\onlineLOG','c:\app\kshitij\flash_recovery_area\orcl\onlineLOG'
*.db_recovery_file_dest_size=2147483648
*.diagnostic_dest='c:\app\kshitij'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)'
*.memory_target=1229979648
*.open_cursors=300
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.undo_tablespace='UNDOTBS1'
-------------------
C. Create spfile from pfile, and restart primary database using the new spfile.
SQL> shutdown immediate;
SQL> startup nomount pfile='C:\app\kshitij\product\11.1.0\db_1\database\INITORCL.ORA';
SQL>create spfile from pfile='C:\app\kshitij\product\11.1.0\db_1\database\INITORCL.ORA';
SQL>shutdown immediate;
SQL>Startup;
7) CREATE STANDBY CONTROLFILE
SQL>shutdown immediate;
SQL>startup mount;
SQL>alter database create standby controlfile as 'C:\SBY.ORA';
SQL>ALTER DATABASE OPEN;
8) take target db backup using rman and restore to standby
RMAN> CONFIGURE RETENTION POLICY TO REDUNDANCY 1;
RMAN> CONFIGURE BACKUP OPTIMIZATION ON;
RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON;
RMAN> CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO 'C:\%F';
RMAN TARGET SYS/ORACLE@ORCL
BACKUP AS COMPRESSED BACKUPSET DATABASE FORMAT 'C:\%U';
----------------III. On the Standby Database Site:---------------
1. CREATE STANDBY DATABASE WITHOUT STARTUP DATABASE
2. Create directory STRUCTURE SAME AS PRIMARY DATABASE for data files. ALSO Create directory (multiplexing) for online logs.
create all required directories for dump and archived log destination:
Create directories adump, bdump, cdump, udump, and archived log destinations for the standby database.
3. Copy the Primary DB pfile to Standby server and rename/edit the file.
1) Copy INITORCL.ora from Primary server to Standby server, to database folder E:\app\kshitij\product\11.1.0\db_1\database.
2) Rename it to INITORCLSBY.ORA, and modify the file as follows
NOTE: The db_name in the standby's init file should be the same as the primary database.
--------------------------INITORCLSBY.ORA----------------------
orcl.__db_cache_size=536870912
orcl.__java_pool_size=16777216
orcl.__large_pool_size=16777216
orcl.__oracle_base='e:\app\kshitij'
orcl.__pga_aggregate_target=301989888
orcl.__sga_target=939524096
orcl.__shared_pool_size=352321536
*.audit_file_dest='e:\app\kshitij\admin\orclsby\adump'
*.audit_trail='db'
*.compatible='11.1.0.0.0'
*.control_files='e:\app\kshitij\oradata\orclsby\control01.ctl','e:\app\kshitij\oradata\orclsby\control02.ctl','e:\app\kshitij\oradata\orclsby\control03.ctl'
*.db_block_size=8192
*.db_domain=''
*.db_name='orcl'
*.db_unique_name='orclsby'
*.LOG_ARCHIVE_CONFIG='DG_CONFIG=(orclsby,orcl)'
*.db_recovery_file_dest='e:\app\kshitij\flash_recovery_area'
*.LOG_ARCHIVE_DEST_1='LOCATION=e:\app\kshitij\flash_recovery_area\orclsby\onlineLOG VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=orclsby'
*.LOG_ARCHIVE_DEST_2='SERVICE=orclsby LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=orclsby'
*.LOG_ARCHIVE_DEST_STATE_1=ENABLE
*.LOG_ARCHIVE_DEST_STATE_2=ENABLE
*.LOG_ARCHIVE_FORMAT=%t_%s_%r.arc
*.LOG_ARCHIVE_MAX_PROCESSES=30
*.FAL_SERVER=orcl
*.FAL_CLIENT=orclsby
*.STANDBY_FILE_MANAGEMENT=AUTO
*.DB_FILE_NAME_CONVERT='c:\app\kshitij\oradata\orcl','e:\app\kshitij\oradata\orclsby'
*.LOG_FILE_NAME_CONVERT='c:\app\kshitij\oradata\orcl','e:\app\kshitij\oradata\orclsby','c:\app\kshitij\flash_recovery_area\orcl\onlineLOG','e:\app\kshitij\flash_recovery_area\orclsby\onlineLOG'
*.db_recovery_file_dest_size=2147483648
*.diagnostic_dest='e:\app\kshitij'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclsbyXDB)'
*.memory_target=1229979648
*.open_cursors=300
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.undo_tablespace='UNDOTBS1'
--------------------------------------------------------
4. Copy the Primary password file to standby and rename it to pwdSBY.ora.
TO E:\app\kshitij\product\11.1.0\db_1\database.
5. Copy the standby control file 'SBY.ORA' from primary to standby destinations ;
6. For Windows, create a Windows-based services (optional):
$oradim –NEW –SID ORCLSBY –STARTMODE manual
7. Configure listeners for the primary and standby databases.
--------------TNSNAMES.ORA--PRIMARY---------
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Kshitij-PC)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(Sid = orcl)
)
)
ORCLSBY =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Kshitij-PC)(PORT = 1522))
(CONNECT_DATA =
(SERVER = DEDICATED)
(Sid = orclsby)
)
)
-----------------LISTENER.ORA----PRIMARY--------
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(PROGRAM = EXTPROC)
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\app\kshitij\product\11.1.0\db_1)
)
(SID_DESC =
(GLOBAL_DBNAME = orcl)
(ORACLE_HOME = C:\app\kshitij\product\11.1.0\db_1)
(SID_NAME = orcl)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Kshitij-PC)(PORT = 1521))
)
)
--------------TNSNAMES.ORA--STANDBY---------
ORCLSBY =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = kshitij-PC)(PORT = 1522))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orclsby)
)
)
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = kshitij-PC)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
-----------------LISTENER.ORA----STANDBY--------
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(PROGRAM = EXTPROC1)
(SID_NAME = PLSExtProc1)
(ORACLE_HOME = e:\app\kshitij\product\11.1.0\db_1)
)
(SID_DESC =
(GLOBAL_DBNAME = orclsby)
(ORACLE_HOME = e:\app\kshitij\product\11.1.0\db_1)
(SID_NAME = orclsby)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Kshitij-PC)(PORT = 1522))
)
)
------------------------
8.
RESTART LISTENER ON PRIMARY AND STANDBY DATABASE
LSNRCTL>RELOAD
CHECK TNSPING ON PRIMARY AND STANDBY DATABASE
$tnsping ORCL
$tnsping ORCLSBY
9. On Standby server, setup the environment variables to point to the Standby database.
Set up ORACLE_HOME and ORACLE_SID.
10. Start up nomount the standby database and generate a spfile.
SQL>startup nomount pfile='E:\app\kshitij\product\11.1.0\db_1\database\INITORCLsby.ORA';
SQL>create spfile from pfile='E:\app\kshitij\product\11.1.0\db_1\database\INITORCLsby.ORA';
SQL>shutdown immediate;
SQL>startup mount;
11.
RMAN TARGET SYS/ORACLE@ORCLSBY
RESTORE CONTROLFILE FROM 'C:\SBY.ORA';
catalog backuppiece 'c:\05LICVI0';
restore database;
12. DUPLICATE DATABASE
NOTE: TARGET DB SHOULD BE MOUNT AND STANDBY SHOULD BE NOMOUNT STATE
rman target sys/oracle@orcl auxiliary sys/oracle@orclsby
RMAN>
run{
allocate channel c1 type disk;
allocate channel c2 type disk;
allocate channel c3 type disk;
allocate channel c4 type disk;
allocate auxiliary channel stby type disk;
duplicate target database for standby;
release channel c1;
release channel c2;
release channel c3;
release channel c4;
}
13. Start Redo apply
1) On the standby database, to start redo apply:
SQL>alter database recover managed standby database disconnect from session;
-----
If you ever need to stop log apply services:
SQL> alter database recover managed standby database cancel;
-------
14. Verify the standby database is performing properly:
A) On Standby perform a query:
SQL>select sequence#, first_time, next_time from v$archived_log;
B) On Primary, force a logfile switch:
SQL>alter system switch logfile;
C) On Standby, verify the archived redo log files were applied:
SQL>
15. If you want the redo data to be applied as it is received without waiting for the current standby redo log file to be archived, enable the real-time apply.
If you want the redo data to be applied as it is received without waiting for the current standby redo log file to be archived, enable the real-time apply.
To start real-time apply:
on standby database
shut immediate;
startup mount
alter database recover managed standby database disconnect;
alter database recover managed standby database cancel;
alter database recover managed standby database disconnect;
alter database recover managed standby database cancel;
alter database open;
alter database recover managed standby database using current logfile disconnect;
on primary only one time
alter system switch logfile;
alter system switch logfile;
16. To create multiple standby databases, repeat this procedure.
17) Failover
SELECT THREAD#, LOW_SEQUENCE#, HIGH_SEQUENCE# FROM V$ARCHIVE_GAP;
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH;
ALTER DATABASE ACTIVATE STANDBY DATABASE;
ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY;
---------IV. Maintenance:-------
1. Check the alert log files of Primary and Standby databases frequently to monitor the database operations in a Data Guard environment.
2. Cleanup the archive logs on Primary and Standby servers.
I scheduled weekly Hot Whole database backup against my primary database that also backs up and delete the archived logs on Primary.
For the standby database, I run RMAN to backup and delete the archive logs once per week.
$rman target /@ORCLSBY;
RMAN>backup archivelog all delete input;
To delete the archivelog backup files on the standby server, I run the following once a month:
RMAN>delete backupset;
3. Password management
The password for the SYS user must be identical on every system for the redo data transmission to succeed. If you change the password for SYS on Primary database, you will have to update the password file for Standby database accordingly, otherwise the logs won't be shipped to the standby server.
-----------------------
-----------------I. Before you get started:-------------------
1. Make sure the operating system and platform architecture on the primary and standby systems are the same;
2. Install Oracle database software without the starter database on the standby server and patch it if necessary. Make sure the same Oracle software release is used on the Primary and Standby databases, and Oracle home paths are identical.
---------II. On the Primary Database Side:---------------------
Enable forced logging on your primary database:
Select FORCE_LOGGING from V$DATABASE;
ALTER DATABASE FORCE LOGGING;
1) The size of the standby redo log files should match the size of the current Primary database online redo log files. To find out the size of your online redo log files:
SQL> select bytes from v$log;
BYTES
----------
52428800
52428800
52428800
2) Use the following command to determine your current log file groups:
SQL> select group#, member from v$logfile;
3) Create standby Redo log groups.
My primary database had 3 log file groups originally and I created 3 standby redo log groups using the following commands:
ALTER DATABASE ADD STANDBY LOGFILE GROUP 4 SIZE 50M;
ALTER DATABASE ADD STANDBY LOGFILE GROUP 5 SIZE 50M;
ALTER DATABASE ADD STANDBY LOGFILE GROUP 6 SIZE 50M;
4) To verify the results of the standby redo log groups creation, run the following query:
SQL>select * from v$standby_log;
5) Enable Archiving on Primary.
If your primary database is not already in Archive Log mode, enable the archive log mode:
SQL>shutdown immediate;
SQL>startup mount;
SQL>alter database archivelog;
SQL>alter database open;
SQL>archive log list;
6) Set Primary Database Initialization Parameters
Create a text initialization parameter file (PFILE) from the server parameter file (SPFILE), to add the new primary role parameters.
A) Create pfile from spfile for the primary database:
SQL>create pfile='C:\app\kshitij\product\11.1.0\db_1\database\INITORCL.ORA' from spfile;
B) Edit INITORCL.ora to add the new primary and standby role parameters:
select * from v$parameter where name like '%log_archive_format%';
select * from v$parameter where name like '%standby%';
select * from v$parameter where name like '%remote_archive_enable%';
select * from v$parameter where name like '%log_archive_dest_state_%';
select * from v$parameter where name like '%convert%';
----------------------INITORCL.ORA------------------
orcl.__db_cache_size=536870912
orcl.__java_pool_size=16777216
orcl.__large_pool_size=16777216
orcl.__oracle_base='c:\app\kshitij'
orcl.__pga_aggregate_target=301989888
orcl.__sga_target=939524096
orcl.__shared_pool_size=352321536
*.audit_file_dest='c:\app\kshitij\admin\orcl\adump'
*.audit_trail='db'
*.compatible='11.1.0.0.0'
*.control_files='c:\app\kshitij\oradata\orcl\control01.ctl','c:\app\kshitij\oradata\orcl\control02.ctl','c:\app\kshitij\oradata\orcl\control03.ctl'
*.db_block_size=8192
*.db_domain=''
*.db_name='orcl'
*.db_unique_name='orcl'
*.LOG_ARCHIVE_CONFIG='DG_CONFIG=(orcl,orclsby)'
*.db_recovery_file_dest='c:\app\kshitij\flash_recovery_area'
*.LOG_ARCHIVE_DEST_1='LOCATION=c:\app\kshitij\flash_recovery_area\orcl\onlineLOG VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=orcl'
*.LOG_ARCHIVE_DEST_2='SERVICE=orclsby LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=orclsby'
*.LOG_ARCHIVE_DEST_STATE_1=ENABLE
*.LOG_ARCHIVE_DEST_STATE_2=ENABLE
*.LOG_ARCHIVE_FORMAT=%t_%s_%r.arc
*.LOG_ARCHIVE_MAX_PROCESSES=30
*.FAL_SERVER=orclsby
*.FAL_CLIENT=orcl
*.STANDBY_FILE_MANAGEMENT=AUTO
*.DB_FILE_NAME_CONVERT='C:\app\kshitij\oradata\orclsby','C:\app\kshitij\oradata\orcl'
*.LOG_FILE_NAME_CONVERT='e:\app\kshitij\oradata\orclsby','C:\app\kshitij\oradata\orcl','e:\app\kshitij\flash_recovery_area\orclsby\onlineLOG','c:\app\kshitij\flash_recovery_area\orcl\onlineLOG'
*.db_recovery_file_dest_size=2147483648
*.diagnostic_dest='c:\app\kshitij'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)'
*.memory_target=1229979648
*.open_cursors=300
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.undo_tablespace='UNDOTBS1'
-------------------
C. Create spfile from pfile, and restart primary database using the new spfile.
SQL> shutdown immediate;
SQL> startup nomount pfile='C:\app\kshitij\product\11.1.0\db_1\database\INITORCL.ORA';
SQL>create spfile from pfile='C:\app\kshitij\product\11.1.0\db_1\database\INITORCL.ORA';
SQL>shutdown immediate;
SQL>Startup;
7) CREATE STANDBY CONTROLFILE
SQL>shutdown immediate;
SQL>startup mount;
SQL>alter database create standby controlfile as 'C:\SBY.ORA';
SQL>ALTER DATABASE OPEN;
8) take target db backup using rman and restore to standby
RMAN> CONFIGURE RETENTION POLICY TO REDUNDANCY 1;
RMAN> CONFIGURE BACKUP OPTIMIZATION ON;
RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON;
RMAN> CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO 'C:\%F';
RMAN TARGET SYS/ORACLE@ORCL
BACKUP AS COMPRESSED BACKUPSET DATABASE FORMAT 'C:\%U';
----------------III. On the Standby Database Site:---------------
1. CREATE STANDBY DATABASE WITHOUT STARTUP DATABASE
2. Create directory STRUCTURE SAME AS PRIMARY DATABASE for data files. ALSO Create directory (multiplexing) for online logs.
create all required directories for dump and archived log destination:
Create directories adump, bdump, cdump, udump, and archived log destinations for the standby database.
3. Copy the Primary DB pfile to Standby server and rename/edit the file.
1) Copy INITORCL.ora from Primary server to Standby server, to database folder E:\app\kshitij\product\11.1.0\db_1\database.
2) Rename it to INITORCLSBY.ORA, and modify the file as follows
NOTE: The db_name in the standby's init file should be the same as the primary database.
--------------------------INITORCLSBY.ORA----------------------
orcl.__db_cache_size=536870912
orcl.__java_pool_size=16777216
orcl.__large_pool_size=16777216
orcl.__oracle_base='e:\app\kshitij'
orcl.__pga_aggregate_target=301989888
orcl.__sga_target=939524096
orcl.__shared_pool_size=352321536
*.audit_file_dest='e:\app\kshitij\admin\orclsby\adump'
*.audit_trail='db'
*.compatible='11.1.0.0.0'
*.control_files='e:\app\kshitij\oradata\orclsby\control01.ctl','e:\app\kshitij\oradata\orclsby\control02.ctl','e:\app\kshitij\oradata\orclsby\control03.ctl'
*.db_block_size=8192
*.db_domain=''
*.db_name='orcl'
*.db_unique_name='orclsby'
*.LOG_ARCHIVE_CONFIG='DG_CONFIG=(orclsby,orcl)'
*.db_recovery_file_dest='e:\app\kshitij\flash_recovery_area'
*.LOG_ARCHIVE_DEST_1='LOCATION=e:\app\kshitij\flash_recovery_area\orclsby\onlineLOG VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=orclsby'
*.LOG_ARCHIVE_DEST_2='SERVICE=orclsby LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=orclsby'
*.LOG_ARCHIVE_DEST_STATE_1=ENABLE
*.LOG_ARCHIVE_DEST_STATE_2=ENABLE
*.LOG_ARCHIVE_FORMAT=%t_%s_%r.arc
*.LOG_ARCHIVE_MAX_PROCESSES=30
*.FAL_SERVER=orcl
*.FAL_CLIENT=orclsby
*.STANDBY_FILE_MANAGEMENT=AUTO
*.DB_FILE_NAME_CONVERT='c:\app\kshitij\oradata\orcl','e:\app\kshitij\oradata\orclsby'
*.LOG_FILE_NAME_CONVERT='c:\app\kshitij\oradata\orcl','e:\app\kshitij\oradata\orclsby','c:\app\kshitij\flash_recovery_area\orcl\onlineLOG','e:\app\kshitij\flash_recovery_area\orclsby\onlineLOG'
*.db_recovery_file_dest_size=2147483648
*.diagnostic_dest='e:\app\kshitij'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclsbyXDB)'
*.memory_target=1229979648
*.open_cursors=300
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.undo_tablespace='UNDOTBS1'
--------------------------------------------------------
4. Copy the Primary password file to standby and rename it to pwdSBY.ora.
TO E:\app\kshitij\product\11.1.0\db_1\database.
5. Copy the standby control file 'SBY.ORA' from primary to standby destinations ;
6. For Windows, create a Windows-based services (optional):
$oradim –NEW –SID ORCLSBY –STARTMODE manual
7. Configure listeners for the primary and standby databases.
--------------TNSNAMES.ORA--PRIMARY---------
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Kshitij-PC)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(Sid = orcl)
)
)
ORCLSBY =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Kshitij-PC)(PORT = 1522))
(CONNECT_DATA =
(SERVER = DEDICATED)
(Sid = orclsby)
)
)
-----------------LISTENER.ORA----PRIMARY--------
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(PROGRAM = EXTPROC)
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\app\kshitij\product\11.1.0\db_1)
)
(SID_DESC =
(GLOBAL_DBNAME = orcl)
(ORACLE_HOME = C:\app\kshitij\product\11.1.0\db_1)
(SID_NAME = orcl)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Kshitij-PC)(PORT = 1521))
)
)
--------------TNSNAMES.ORA--STANDBY---------
ORCLSBY =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = kshitij-PC)(PORT = 1522))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orclsby)
)
)
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = kshitij-PC)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
-----------------LISTENER.ORA----STANDBY--------
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(PROGRAM = EXTPROC1)
(SID_NAME = PLSExtProc1)
(ORACLE_HOME = e:\app\kshitij\product\11.1.0\db_1)
)
(SID_DESC =
(GLOBAL_DBNAME = orclsby)
(ORACLE_HOME = e:\app\kshitij\product\11.1.0\db_1)
(SID_NAME = orclsby)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Kshitij-PC)(PORT = 1522))
)
)
------------------------
8.
RESTART LISTENER ON PRIMARY AND STANDBY DATABASE
LSNRCTL>RELOAD
CHECK TNSPING ON PRIMARY AND STANDBY DATABASE
$tnsping ORCL
$tnsping ORCLSBY
9. On Standby server, setup the environment variables to point to the Standby database.
Set up ORACLE_HOME and ORACLE_SID.
10. Start up nomount the standby database and generate a spfile.
SQL>startup nomount pfile='E:\app\kshitij\product\11.1.0\db_1\database\INITORCLsby.ORA';
SQL>create spfile from pfile='E:\app\kshitij\product\11.1.0\db_1\database\INITORCLsby.ORA';
SQL>shutdown immediate;
SQL>startup mount;
11.
RMAN TARGET SYS/ORACLE@ORCLSBY
RESTORE CONTROLFILE FROM 'C:\SBY.ORA';
catalog backuppiece 'c:\05LICVI0';
restore database;
12. DUPLICATE DATABASE
NOTE: TARGET DB SHOULD BE MOUNT AND STANDBY SHOULD BE NOMOUNT STATE
rman target sys/oracle@orcl auxiliary sys/oracle@orclsby
RMAN>
run{
allocate channel c1 type disk;
allocate channel c2 type disk;
allocate channel c3 type disk;
allocate channel c4 type disk;
allocate auxiliary channel stby type disk;
duplicate target database for standby;
release channel c1;
release channel c2;
release channel c3;
release channel c4;
}
13. Start Redo apply
1) On the standby database, to start redo apply:
SQL>alter database recover managed standby database disconnect from session;
-----
If you ever need to stop log apply services:
SQL> alter database recover managed standby database cancel;
-------
14. Verify the standby database is performing properly:
A) On Standby perform a query:
SQL>select sequence#, first_time, next_time from v$archived_log;
B) On Primary, force a logfile switch:
SQL>alter system switch logfile;
C) On Standby, verify the archived redo log files were applied:
SQL>
15. If you want the redo data to be applied as it is received without waiting for the current standby redo log file to be archived, enable the real-time apply.
If you want the redo data to be applied as it is received without waiting for the current standby redo log file to be archived, enable the real-time apply.
To start real-time apply:
on standby database
shut immediate;
startup mount
alter database recover managed standby database disconnect;
alter database recover managed standby database cancel;
alter database recover managed standby database disconnect;
alter database recover managed standby database cancel;
alter database open;
alter database recover managed standby database using current logfile disconnect;
on primary only one time
alter system switch logfile;
alter system switch logfile;
16. To create multiple standby databases, repeat this procedure.
17) Failover
SELECT THREAD#, LOW_SEQUENCE#, HIGH_SEQUENCE# FROM V$ARCHIVE_GAP;
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH;
ALTER DATABASE ACTIVATE STANDBY DATABASE;
ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY;
---------IV. Maintenance:-------
1. Check the alert log files of Primary and Standby databases frequently to monitor the database operations in a Data Guard environment.
2. Cleanup the archive logs on Primary and Standby servers.
I scheduled weekly Hot Whole database backup against my primary database that also backs up and delete the archived logs on Primary.
For the standby database, I run RMAN to backup and delete the archive logs once per week.
$rman target /@ORCLSBY;
RMAN>backup archivelog all delete input;
To delete the archivelog backup files on the standby server, I run the following once a month:
RMAN>delete backupset;
3. Password management
The password for the SYS user must be identical on every system for the redo data transmission to succeed. If you change the password for SYS on Primary database, you will have to update the password file for Standby database accordingly, otherwise the logs won't be shipped to the standby server.
-----------------------
Friday, June 25, 2010
Oracle Database Growth Report
select sum(space_used_delta) / 1024 / 1024 "Space used (M)", sum(c.bytes) / 1024 / 1024 "Total Schema Size (M)",
round(sum(space_used_delta) / sum(c.bytes) * 100, 2) || '%' "Percent of Total Disk Usage"
from
dba_hist_snapshot sn,
dba_hist_seg_stat a,
dba_objects b,
dba_segments c
where end_interval_time > trunc(sysdate) - &days_back
and sn.snap_id = a.snap_id
and b.object_id = a.obj#
and b.owner = c.owner
and b.object_name = c.segment_name
and c.owner = 'SYS'
and space_used_delta > 0;
----------------------
SELECT TO_CHAR (sp.begin_interval_time,'DD-MM-YYYY') days
, ts.tsname
, max(round((tsu.tablespace_size* dt.block_size )/(1024*1024),2) ) cur_size_MB
, max(round((tsu.tablespace_usedsize* dt.block_size )/(1024*1024),2)) usedsize_MB
FROM DBA_HIST_TBSPC_SPACE_USAGE tsu
, DBA_HIST_TABLESPACE_STAT ts
, DBA_HIST_SNAPSHOT sp
, DBA_TABLESPACES dt
WHERE tsu.tablespace_id= ts.ts#
AND tsu.snap_id = sp.snap_id
AND ts.tsname = dt.tablespace_name
AND ts.tsname NOT IN ('SYSAUX','SYSTEM')
GROUP BY TO_CHAR (sp.begin_interval_time,'DD-MM-YYYY'), ts.tsname
ORDER BY tsname desc,days desc;
-------------------Increase Snap Shot time
BEGIN
DBMS_WORKLOAD_REPOSITORY.modify_snapshot_settings(
retention => 43200, -- Minutes (= 30 Days). Current value retained if NULL.
interval => 30); -- Minutes. Current value retained if NULL.
END;
/
----------------------
round(sum(space_used_delta) / sum(c.bytes) * 100, 2) || '%' "Percent of Total Disk Usage"
from
dba_hist_snapshot sn,
dba_hist_seg_stat a,
dba_objects b,
dba_segments c
where end_interval_time > trunc(sysdate) - &days_back
and sn.snap_id = a.snap_id
and b.object_id = a.obj#
and b.owner = c.owner
and b.object_name = c.segment_name
and c.owner = 'SYS'
and space_used_delta > 0;
----------------------
SELECT TO_CHAR (sp.begin_interval_time,'DD-MM-YYYY') days
, ts.tsname
, max(round((tsu.tablespace_size* dt.block_size )/(1024*1024),2) ) cur_size_MB
, max(round((tsu.tablespace_usedsize* dt.block_size )/(1024*1024),2)) usedsize_MB
FROM DBA_HIST_TBSPC_SPACE_USAGE tsu
, DBA_HIST_TABLESPACE_STAT ts
, DBA_HIST_SNAPSHOT sp
, DBA_TABLESPACES dt
WHERE tsu.tablespace_id= ts.ts#
AND tsu.snap_id = sp.snap_id
AND ts.tsname = dt.tablespace_name
AND ts.tsname NOT IN ('SYSAUX','SYSTEM')
GROUP BY TO_CHAR (sp.begin_interval_time,'DD-MM-YYYY'), ts.tsname
ORDER BY tsname desc,days desc;
-------------------Increase Snap Shot time
BEGIN
DBMS_WORKLOAD_REPOSITORY.modify_snapshot_settings(
retention => 43200, -- Minutes (= 30 Days). Current value retained if NULL.
interval => 30); -- Minutes. Current value retained if NULL.
END;
/
----------------------
Database Growth Monitoring Script
Step : 1 Calculate total Size of tablespace
select sum(bytes)/1024/1024 "TOTAL SIZE (MB)" from dba_Data_files
Step : 2 Calculate Free Space in Tablespace
select sum(bytes)/1024/1024 "FREE SPACE (MB)" from dba_free_space
Step : 3 Calculate total size , free space and used space in tablespace
select t2.total "TOTAL SIZE",t1.free "FREE SPACE",(t1.free/t2.total)*100 "FREE (%)" ,(1-t1.free/t2.total)*100 "USED (%)"
from (select sum(bytes)/1024/1024 free from dba_free_space) t1 , (select sum(bytes)/1024/1024 total from dba_Data_files) t2
Step : 4 Create table which is store all free/use space related information of tablespace
create table db_growth
as select *
from (
select sysdate,t2.total "TOTAL_SIZE",t1.free "FREE_SPACE",(t1.free/t2.total)*100 "FREE% "
from
(select sum(bytes)/1024/1024 free
from dba_free_space) t1 ,
(select sum(bytes)/1024/1024 total
from dba_Data_files) t2
)
Step : 5 Insert free space information in DB_GROWTH table (if you want to populate data Manually)
insert into db_growth
select *
from (
select sysdate,t2.total "TOTAL_SIZE",t1.free "FREE_SPACE",(t1.free/t2.total)*100 "FREE%"
from
(select sum(bytes)/1024/1024 free
from dba_free_space) t1 ,
(select sum(bytes)/1024/1024 total
from dba_Data_files) t2
)
Step : 6 Create View on DB_GROWTH based table ( This Steps is Required if you want to populate data automatically)
create view v_db_growth
as select *
from
(
select sysdate,t2.total "TOTAL_SIZE",t1.free "FREE_SPACE",(t1.free/t2.total)*100 "FREE%"
from
(select sum(bytes)/1024/1024 free
from dba_free_space) t1 ,
(select sum(bytes)/1024/1024 total
from dba_Data_files) t2
)
Step : 7 Insert data into DB_GROWTH table from V_DD_GROWTH view
insert into db_growth select *
from v_db_growth
Step : 8 Check everything goes fine.
select * from db_growth;
Check Result
Step : 9 Execute following SQL for more time stamp information
alter session set nls_date_format ='dd-mon-yyyy hh24:mi:ss' ;
Session altered.
Step : 10 Create a DBMS jobs which execute after 24 hours
declare
jobno number;
begin
dbms_job.submit(
jobno, 'begin insert into db_growth select * from v_db_growth;commit;end;', sysdate, 'SYSDATE+ 24', TRUE);
commit;
end;
PL/SQL procedure successfully completed.
Step: 11 View your dbms jobs and it's other information
select * from user_jobs;
TIPS: If you want to execute dbms jobs manually execute following command other wise jobs is executing automatically
exec dbms_job.run(ENTER_JOB_NUMBER)
PL/SQL procedure successfully completed.
Step: 13 Finally all data populated in db_growth table
select * from db_growth;
-------------------------
select sum(bytes)/1024/1024 "TOTAL SIZE (MB)" from dba_Data_files
Step : 2 Calculate Free Space in Tablespace
select sum(bytes)/1024/1024 "FREE SPACE (MB)" from dba_free_space
Step : 3 Calculate total size , free space and used space in tablespace
select t2.total "TOTAL SIZE",t1.free "FREE SPACE",(t1.free/t2.total)*100 "FREE (%)" ,(1-t1.free/t2.total)*100 "USED (%)"
from (select sum(bytes)/1024/1024 free from dba_free_space) t1 , (select sum(bytes)/1024/1024 total from dba_Data_files) t2
Step : 4 Create table which is store all free/use space related information of tablespace
create table db_growth
as select *
from (
select sysdate,t2.total "TOTAL_SIZE",t1.free "FREE_SPACE",(t1.free/t2.total)*100 "FREE% "
from
(select sum(bytes)/1024/1024 free
from dba_free_space) t1 ,
(select sum(bytes)/1024/1024 total
from dba_Data_files) t2
)
Step : 5 Insert free space information in DB_GROWTH table (if you want to populate data Manually)
insert into db_growth
select *
from (
select sysdate,t2.total "TOTAL_SIZE",t1.free "FREE_SPACE",(t1.free/t2.total)*100 "FREE%"
from
(select sum(bytes)/1024/1024 free
from dba_free_space) t1 ,
(select sum(bytes)/1024/1024 total
from dba_Data_files) t2
)
Step : 6 Create View on DB_GROWTH based table ( This Steps is Required if you want to populate data automatically)
create view v_db_growth
as select *
from
(
select sysdate,t2.total "TOTAL_SIZE",t1.free "FREE_SPACE",(t1.free/t2.total)*100 "FREE%"
from
(select sum(bytes)/1024/1024 free
from dba_free_space) t1 ,
(select sum(bytes)/1024/1024 total
from dba_Data_files) t2
)
Step : 7 Insert data into DB_GROWTH table from V_DD_GROWTH view
insert into db_growth select *
from v_db_growth
Step : 8 Check everything goes fine.
select * from db_growth;
Check Result
Step : 9 Execute following SQL for more time stamp information
alter session set nls_date_format ='dd-mon-yyyy hh24:mi:ss' ;
Session altered.
Step : 10 Create a DBMS jobs which execute after 24 hours
declare
jobno number;
begin
dbms_job.submit(
jobno, 'begin insert into db_growth select * from v_db_growth;commit;end;', sysdate, 'SYSDATE+ 24', TRUE);
commit;
end;
PL/SQL procedure successfully completed.
Step: 11 View your dbms jobs and it's other information
select * from user_jobs;
TIPS: If you want to execute dbms jobs manually execute following command other wise jobs is executing automatically
exec dbms_job.run(ENTER_JOB_NUMBER)
PL/SQL procedure successfully completed.
Step: 13 Finally all data populated in db_growth table
select * from db_growth;
-------------------------
Thursday, June 24, 2010
Oracle User Login Lock Wrong Attempt details
select username,osuser,machine,blocking_session from v$session where username='LDBO';
select username,os_username,to_char(timestamp, 'Dy DD-Mon-YYYY HH24:MI:SS') "Time",terminal,
---UTL_INADDR.get_host_address(terminal) "IP",
decode(returncode,0,'Successful',1017,'WrongAttempt',28000,'Locked',28009,'SYS Login',1005,'Fail_NULL',28001,'EXPIRED',28031,'Roles_Exceeded',returncode) Login_Status
from dba_audit_session where trim(Timestamp) > trunc(sysdate-1)
and username='AHE'
-----and os_username like '%UNICON\%'
order by timestamp desc;
select username,password,account_status,to_char(lock_date, 'Dy DD-Mon-YYYY HH24:MI:SS') lock_date,expiry_date
from dba_users where account_status like '%LOCKED%' order by 3 desc,lock_date desc;
select distinct username "USER ID",osuser,machine,UTL_INADDR.get_host_address(terminal)"System IP", decode(username,'USSB3409','ANILKUMAR','USSB0065','GAURAVSINGH','USSB0737','KAVITA', 'USSB0580','MAHINDERSINGH', 'USSB0624','RAJENDERSINGH','USSB0625','RAKESHKUMAR','UIPL6716','RAKESHLAL','USSB0500','RUPINDERKAUR','UIPL6713','SHASHINATH','USSB0502','SURENDERKUMAR','UIPL6715','VIRENDERSINGH','UIPL6714','SANJAYKUMARSISODIA','UIPL7249','BHAVYASINGH','UFIPL00152','GOVINDGUPTA','UIPL7244','INDIRARAWAT','USSB2693','JYOTI','UIPL7258','MANTUKUMARSINGH','USSB0080','PRIYADAS','USSB2720','RAHUL','UIPL7210','ROBINTYAGI','UFIPL00154','ROHITGUPTA','USSB1740','SHAKSHI','UIPL7259','VINODKUMAR','USSB0991','ARJUNSINGH','UFPL00058','DHEERAJTANEJA','UFIPL00151','PAWANKUMARJINDAL','UIPL7759','PRABHAKARSINGH','USSB0948','PRIYANKARANA','USSB6549','RAJESHSHARMA.','USSB6788','RAMKRISHANKUMAR','USSB6790','ROSHANKUMAR','USSB0550','SACHINSUGANDHA','UIPL7261','SHOBHITAGARWAL','USSB1470','SIDDHARTHBHATIA','USSB6996','KANIKAKHURANA','UFIPL00153','DEVESH','UIPL10283','SWATISALUJA','UIPL10287','NITINGOYAL','UIPL9767','GAURAV','UFIPL00156','AMITKUMARSINGHAL','UIPL10305','PRANJEETKAUSHIK','UFPL00173','PUNEETSHARMA','UIPL10672','SUMITRAJORA','UFPL00188','DEEPAKGUPTA','UFPL00195','VINEETSABHLOK','USSB0019','PRASHANTUPADHYAY','USSB0022','NEERAJGROVER','USSB0109','SAURABHAATRE','USSB0626','SHAHABUDDIN','USSB2701','NITESH','UCPL0491','POONAMSINGH','UCPL0116','DURGESHKESHRI','USSB0211','SAURABHCHAUDHARY','USSB0431','VIRENDERSINGHCHANDEL','USSB5498','AKANSHARAWAL','USSB7030','SATYANARAYANA','UIPL6793','JAGDEEPSINGH','USSB3700','JAYAACHAR','UIPL6778','NEERAJSHARMA','USSB6047','NEHAGOEL','UIPL6798','ROHANSHARMA','UIPL6828','SACHINTYAGI','USSB4173','SEEMAGAMBHIR','USSB4766','SHAKSHIARORA','UCPL0117','SHAMPAMUKHERJEE','UIPL6736','SONIABENWAL','USSB6621','TANUSHREESOMANI','USSB1236','ASHIMAARORA','UIPL6771','SHELLY','USSB5708','KULDEEPKAUR','UIPL6801','SHWETA','UIPL6800','ROHITLUTHRA','USSB7428','AMRESHKUMAR','UIPL10160','SONIASABHARWAL','USSB7444','ANILSHARMA','UIPL10515','SAPNAGUPTA','UIPL10402','KHUSHALRAZDAN','UIPL6742','GITTUKATARIA','UIPL6746','MUNNASINGH','USSB0013','AMITTYAGI','UIPL6722','DEEPANSHUMALHOTRA','USSB5695','HARENDRASHARMA','UIPL6727','MANISHVERMA','USSB1112','PRATIMASINGH','USSB5374','PULKIT','USSB1253','RAHULTYAGI','USSB5274','VARUNKANT','UFPL00178','SUBHASHCHANDRAGEHLOT','UFPL00028','SUBHASHSHARMA','USSB6901','KSHITIJR.GUPTA','UCPL0154','RACHITJAIN','USSB6097','SHEKHARSAXENA','UIPL6712','YESHPALTHAKUR','USSB6002','SANDHYASHARMA','UFIPL00130','ANJALIMUKHIJA','UCPL0111','AMITUPADHYAY','USSB6045','RAJAN','UFIPL00136','SANDEEPSIR','USSB0064','AMITJAIN','UIPL6831','ANKITASRIVASTAVA','USSB6805','SHASHIBHUSHAN','USSB6950','SUNIIGABA','USSB7222','NILESHTRIPATHI','USSB0849','OMPRAKASHBANDERWAL','USSB0458','ROHTASAGARWAL','RMS','RMS','USSB1366','NEETARASTOGI','USSB0256','ANANDJOSHI','USSB1032','SATISHSHARMA','USSB1113','SUNILKUMARSINGHAL','UIPL6721','VISHALGUPTA','UIPL6724','YATENDRASINGHBISHT','USSB6241','KULDEEPSHARMA','USSB5495','RAGHIBHUSAIN','USSB1031','TARUNCHHOKRA','UIPL6717','NEERAJKAUSHIK','USSB6508','ACHINANAND','USSB7530','KHYATIADLAKHA','USSB7565','BHUWANSHARMA','USSB7550','NEHASINGH','LDBO','DBA') Name
from v$session where program ='ld.exe' order by 5;
select username,password,account_status,lock_date, to_char(expiry_date, 'Dy DD-Mon-YYYY HH24:MI:SS') expir_date
from dba_users where account_status like '%EXPIRED%' order by expiry_date desc;
select username,os_username,terminal "System IP",to_char(timestamp, 'Dy DD-Mon-YYYY HH24:MI:SS') "Time",obj_name, decode(ses_actions,'---------S------','SELECT','----------S-----','UPDATE',ses_actions) action,action_name
from dba_audit_trail
where trim(Timestamp)=trunc(sysdate)
order by 4 desc;
select username,os_username,terminal,to_char(timestamp, 'Dy DD-Mon-YYYY HH24:MI:SS') "Time",obj_name,action_name
,decode(returncode,1917,'Grant Revoke',1918,'ALter',1920,'Creation',returncode) Status
from dba_audit_exists
order by timestamp desc;
select firmnumber,oowncode as username,cclientlevelpassword as password from clemaildetail where oowncode='DP122';
SELECT username, terminal, to_char (timestamp, 'Dy DD-Mon-YYYY HH24:MI:SS'),
decode(returncode,0,'Successful',1017,'WrongAttempt',28000,'Locked',28009,'SYS Login',1005,'Fail_NULL',28001,'EXPIRED',28031,'Roles_Exceeded',returncode) Login_Status
FROM dba_audit_session
WHERE returncode <> 0 AND not exists (SELECT 'x' FROM dba_users WHERE dba_users.username=dba_audit_session.username)
and trim(Timestamp)=trunc(sysdate)
order by timestamp desc;
select username,os_username,terminal "System IP",to_char(timestamp, 'Dy DD-Mon-YYYY HH24:MI:SS') "Time",obj_name,action_name from dba_audit_object where trim(Timestamp)=trunc(sysdate) order by timestamp desc;
select username,os_username,
UTL_INADDR.get_host_address(terminal)"System IP",to_char(timestamp, 'Dy DD-Mon-YYYY HH24:MI:SS') "Time",
obj_name,action_name from dba_audit_statement
--where
----trim(Timestamp)=trunc(sysdate)
--obj_name='UIPL6713'
order by timestamp desc;
select * from dba_stmt_audit_opts;
select * from dba_priv_audit_opts;
select * from dba_audit_object where obj_name='LDBO' order by timestamp desc;
select distinct * from TBLAUDITUSERLOGONDETAILS
where cusername not in ('SYS','CLLVL')
and cusername='LDBO'
and trim(dlogonday)=trunc(SYSDATE)
order by dlogonday desc,clogontime desc;
Select Substr(Upper(User_audit_trail.Os_Username),1,30) as cOS_Username, Rpad(' ',10) as Oowncode, Substr(User_audit_trail.Username,1,30) as cUsername,User_audit_trail.Userhost as cUserhost, Upper(Substr(User_audit_trail.Terminal,1,30)) as cTerminal,User_audit_trail.Timestamp as dTimeStamp, nvl(User_audit_trail.Obj_name,' ') as cObjectName,User_audit_trail.Action_name as cActionname, nvl(User_audit_trail.Sys_Privilege,' ') as cSysPrivilege,nvl(User_audit_trail.Grantee,' ') as cGrantee, nvl(User_audit_trail.Priv_Used,' ') as cPrivUsed From User_audit_trail User_audit_trail
Where User_audit_trail.Os_Username not in ('SYSTEM','SYSMAN','DBSNMP')
and User_audit_trail.Username='LDBO'
and trim(User_audit_trail.Timestamp)=trunc(sysdate)
order by timestamp;
Select Dba_Users.Username as cUsername,Dba_Users.Profile as cProfile, Dba_Users.Account_status as cAccountstatus,Dba_Users.Lock_date as dLockDate,Dba_Users.Expiry_Date as dExpiryDate, Dba_users.Created as dCreationDate
From Dba_Users Dba_Users
Where Dba_users.Username not in ('SYS', 'SYSTEM', 'DBSNMP', 'TSMSYS', 'OUTLN', 'ORACLE_OCM','MGMT_VIEW','SYSMAN', 'WMSYS', 'DIP')
and Dba_Users.Created>='13-MAR-09'
--and trim(dlockdate)!=' '
---and trim(dexpirydate)!=' '
and Dba_Users.Created<=trunc(sysdate) order by 5 desc, 4 desc;
-----------------------------
select username,os_username,to_char(timestamp, 'Dy DD-Mon-YYYY HH24:MI:SS') "Time",terminal,
---UTL_INADDR.get_host_address(terminal) "IP",
decode(returncode,0,'Successful',1017,'WrongAttempt',28000,'Locked',28009,'SYS Login',1005,'Fail_NULL',28001,'EXPIRED',28031,'Roles_Exceeded',returncode) Login_Status
from dba_audit_session where trim(Timestamp) > trunc(sysdate-1)
and username='AHE'
-----and os_username like '%UNICON\%'
order by timestamp desc;
select username,password,account_status,to_char(lock_date, 'Dy DD-Mon-YYYY HH24:MI:SS') lock_date,expiry_date
from dba_users where account_status like '%LOCKED%' order by 3 desc,lock_date desc;
select distinct username "USER ID",osuser,machine,UTL_INADDR.get_host_address(terminal)"System IP", decode(username,'USSB3409','ANILKUMAR','USSB0065','GAURAVSINGH','USSB0737','KAVITA', 'USSB0580','MAHINDERSINGH', 'USSB0624','RAJENDERSINGH','USSB0625','RAKESHKUMAR','UIPL6716','RAKESHLAL','USSB0500','RUPINDERKAUR','UIPL6713','SHASHINATH','USSB0502','SURENDERKUMAR','UIPL6715','VIRENDERSINGH','UIPL6714','SANJAYKUMARSISODIA','UIPL7249','BHAVYASINGH','UFIPL00152','GOVINDGUPTA','UIPL7244','INDIRARAWAT','USSB2693','JYOTI','UIPL7258','MANTUKUMARSINGH','USSB0080','PRIYADAS','USSB2720','RAHUL','UIPL7210','ROBINTYAGI','UFIPL00154','ROHITGUPTA','USSB1740','SHAKSHI','UIPL7259','VINODKUMAR','USSB0991','ARJUNSINGH','UFPL00058','DHEERAJTANEJA','UFIPL00151','PAWANKUMARJINDAL','UIPL7759','PRABHAKARSINGH','USSB0948','PRIYANKARANA','USSB6549','RAJESHSHARMA.','USSB6788','RAMKRISHANKUMAR','USSB6790','ROSHANKUMAR','USSB0550','SACHINSUGANDHA','UIPL7261','SHOBHITAGARWAL','USSB1470','SIDDHARTHBHATIA','USSB6996','KANIKAKHURANA','UFIPL00153','DEVESH','UIPL10283','SWATISALUJA','UIPL10287','NITINGOYAL','UIPL9767','GAURAV','UFIPL00156','AMITKUMARSINGHAL','UIPL10305','PRANJEETKAUSHIK','UFPL00173','PUNEETSHARMA','UIPL10672','SUMITRAJORA','UFPL00188','DEEPAKGUPTA','UFPL00195','VINEETSABHLOK','USSB0019','PRASHANTUPADHYAY','USSB0022','NEERAJGROVER','USSB0109','SAURABHAATRE','USSB0626','SHAHABUDDIN','USSB2701','NITESH','UCPL0491','POONAMSINGH','UCPL0116','DURGESHKESHRI','USSB0211','SAURABHCHAUDHARY','USSB0431','VIRENDERSINGHCHANDEL','USSB5498','AKANSHARAWAL','USSB7030','SATYANARAYANA','UIPL6793','JAGDEEPSINGH','USSB3700','JAYAACHAR','UIPL6778','NEERAJSHARMA','USSB6047','NEHAGOEL','UIPL6798','ROHANSHARMA','UIPL6828','SACHINTYAGI','USSB4173','SEEMAGAMBHIR','USSB4766','SHAKSHIARORA','UCPL0117','SHAMPAMUKHERJEE','UIPL6736','SONIABENWAL','USSB6621','TANUSHREESOMANI','USSB1236','ASHIMAARORA','UIPL6771','SHELLY','USSB5708','KULDEEPKAUR','UIPL6801','SHWETA','UIPL6800','ROHITLUTHRA','USSB7428','AMRESHKUMAR','UIPL10160','SONIASABHARWAL','USSB7444','ANILSHARMA','UIPL10515','SAPNAGUPTA','UIPL10402','KHUSHALRAZDAN','UIPL6742','GITTUKATARIA','UIPL6746','MUNNASINGH','USSB0013','AMITTYAGI','UIPL6722','DEEPANSHUMALHOTRA','USSB5695','HARENDRASHARMA','UIPL6727','MANISHVERMA','USSB1112','PRATIMASINGH','USSB5374','PULKIT','USSB1253','RAHULTYAGI','USSB5274','VARUNKANT','UFPL00178','SUBHASHCHANDRAGEHLOT','UFPL00028','SUBHASHSHARMA','USSB6901','KSHITIJR.GUPTA','UCPL0154','RACHITJAIN','USSB6097','SHEKHARSAXENA','UIPL6712','YESHPALTHAKUR','USSB6002','SANDHYASHARMA','UFIPL00130','ANJALIMUKHIJA','UCPL0111','AMITUPADHYAY','USSB6045','RAJAN','UFIPL00136','SANDEEPSIR','USSB0064','AMITJAIN','UIPL6831','ANKITASRIVASTAVA','USSB6805','SHASHIBHUSHAN','USSB6950','SUNIIGABA','USSB7222','NILESHTRIPATHI','USSB0849','OMPRAKASHBANDERWAL','USSB0458','ROHTASAGARWAL','RMS','RMS','USSB1366','NEETARASTOGI','USSB0256','ANANDJOSHI','USSB1032','SATISHSHARMA','USSB1113','SUNILKUMARSINGHAL','UIPL6721','VISHALGUPTA','UIPL6724','YATENDRASINGHBISHT','USSB6241','KULDEEPSHARMA','USSB5495','RAGHIBHUSAIN','USSB1031','TARUNCHHOKRA','UIPL6717','NEERAJKAUSHIK','USSB6508','ACHINANAND','USSB7530','KHYATIADLAKHA','USSB7565','BHUWANSHARMA','USSB7550','NEHASINGH','LDBO','DBA') Name
from v$session where program ='ld.exe' order by 5;
select username,password,account_status,lock_date, to_char(expiry_date, 'Dy DD-Mon-YYYY HH24:MI:SS') expir_date
from dba_users where account_status like '%EXPIRED%' order by expiry_date desc;
select username,os_username,terminal "System IP",to_char(timestamp, 'Dy DD-Mon-YYYY HH24:MI:SS') "Time",obj_name, decode(ses_actions,'---------S------','SELECT','----------S-----','UPDATE',ses_actions) action,action_name
from dba_audit_trail
where trim(Timestamp)=trunc(sysdate)
order by 4 desc;
select username,os_username,terminal,to_char(timestamp, 'Dy DD-Mon-YYYY HH24:MI:SS') "Time",obj_name,action_name
,decode(returncode,1917,'Grant Revoke',1918,'ALter',1920,'Creation',returncode) Status
from dba_audit_exists
order by timestamp desc;
select firmnumber,oowncode as username,cclientlevelpassword as password from clemaildetail where oowncode='DP122';
SELECT username, terminal, to_char (timestamp, 'Dy DD-Mon-YYYY HH24:MI:SS'),
decode(returncode,0,'Successful',1017,'WrongAttempt',28000,'Locked',28009,'SYS Login',1005,'Fail_NULL',28001,'EXPIRED',28031,'Roles_Exceeded',returncode) Login_Status
FROM dba_audit_session
WHERE returncode <> 0 AND not exists (SELECT 'x' FROM dba_users WHERE dba_users.username=dba_audit_session.username)
and trim(Timestamp)=trunc(sysdate)
order by timestamp desc;
select username,os_username,terminal "System IP",to_char(timestamp, 'Dy DD-Mon-YYYY HH24:MI:SS') "Time",obj_name,action_name from dba_audit_object where trim(Timestamp)=trunc(sysdate) order by timestamp desc;
select username,os_username,
UTL_INADDR.get_host_address(terminal)"System IP",to_char(timestamp, 'Dy DD-Mon-YYYY HH24:MI:SS') "Time",
obj_name,action_name from dba_audit_statement
--where
----trim(Timestamp)=trunc(sysdate)
--obj_name='UIPL6713'
order by timestamp desc;
select * from dba_stmt_audit_opts;
select * from dba_priv_audit_opts;
select * from dba_audit_object where obj_name='LDBO' order by timestamp desc;
select distinct * from TBLAUDITUSERLOGONDETAILS
where cusername not in ('SYS','CLLVL')
and cusername='LDBO'
and trim(dlogonday)=trunc(SYSDATE)
order by dlogonday desc,clogontime desc;
Select Substr(Upper(User_audit_trail.Os_Username),1,30) as cOS_Username, Rpad(' ',10) as Oowncode, Substr(User_audit_trail.Username,1,30) as cUsername,User_audit_trail.Userhost as cUserhost, Upper(Substr(User_audit_trail.Terminal,1,30)) as cTerminal,User_audit_trail.Timestamp as dTimeStamp, nvl(User_audit_trail.Obj_name,' ') as cObjectName,User_audit_trail.Action_name as cActionname, nvl(User_audit_trail.Sys_Privilege,' ') as cSysPrivilege,nvl(User_audit_trail.Grantee,' ') as cGrantee, nvl(User_audit_trail.Priv_Used,' ') as cPrivUsed From User_audit_trail User_audit_trail
Where User_audit_trail.Os_Username not in ('SYSTEM','SYSMAN','DBSNMP')
and User_audit_trail.Username='LDBO'
and trim(User_audit_trail.Timestamp)=trunc(sysdate)
order by timestamp;
Select Dba_Users.Username as cUsername,Dba_Users.Profile as cProfile, Dba_Users.Account_status as cAccountstatus,Dba_Users.Lock_date as dLockDate,Dba_Users.Expiry_Date as dExpiryDate, Dba_users.Created as dCreationDate
From Dba_Users Dba_Users
Where Dba_users.Username not in ('SYS', 'SYSTEM', 'DBSNMP', 'TSMSYS', 'OUTLN', 'ORACLE_OCM','MGMT_VIEW','SYSMAN', 'WMSYS', 'DIP')
and Dba_Users.Created>='13-MAR-09'
--and trim(dlockdate)!=' '
---and trim(dexpirydate)!=' '
and Dba_Users.Created<=trunc(sysdate) order by 5 desc, 4 desc;
-----------------------------
Wednesday, June 9, 2010
Oracle Password Policy
-- This script sets the default password resource parameters
-- This script needs to be run to enable the password features.
-- However the default resource parameters can be changed based
-- on the need.
-- A default password complexity function is also provided.
-- This function makes the minimum complexity checks like
-- the minimum length of the password, password not same as the
-- username, etc. The user may enhance this function according to
-- the need.
-- This function must be created in SYS schema.
-- connect sys/ as sysdba before running the script
CREATE OR REPLACE FUNCTION verify_function
(username varchar2,
password varchar2,
old_password varchar2)
RETURN boolean IS
n boolean;
m integer;
differ integer;
isdigit boolean;
ischar boolean;
ispunct boolean;
digitarray varchar2(20);
punctarray varchar2(25);
chararray varchar2(52);
BEGIN
digitarray:= '0123456789';
chararray:= 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
punctarray:='!#$%^&*()_+|~-=\`{}[]:"'<>?,./';
-- Check if the password is same as the username
IF NLS_LOWER(password) = NLS_LOWER(username) THEN
raise_application_error(-20001, 'Password same as or similar to user');
END IF;
-- Check for the minimum length of the password
IF length(password) < isdigit =" FALSE">>
ischar:=FALSE;
FOR i IN 1..length(chararray) LOOP
FOR j IN 1..m LOOP
IF substr(password,j,1) = substr(chararray,i,1) THEN
ischar:=TRUE;
GOTO findpunct;
END IF;
END LOOP;
END LOOP;
IF ischar = FALSE THEN
raise_application_error(-20003, 'Password should contain at least one digit, one character and one punctuation except @');
END IF;
-- 3. Check for the punctuation
<>
ispunct:=FALSE;
FOR i IN 1..length(punctarray) LOOP
FOR j IN 1..m LOOP
IF substr(password,j,1) = substr(punctarray,i,1) THEN
ispunct:=TRUE;
GOTO endsearch;
END IF;
END LOOP;
END LOOP;
IF ispunct = FALSE THEN
raise_application_error(-20003, 'Password should contain at least one digit, one character and one punctuation except @');
END IF;
<>
-- Check if the password differs from the previous password by at least 3 letters
IF old_password IS NOT NULL THEN
differ := length(old_password) - length(password);
IF abs(differ) < 3 THEN
IF length(password) < length(old_password) THEN
m := length(password);
ELSE
m := length(old_password);
END IF;
differ := abs(differ);
FOR i IN 1..m LOOP
IF substr(password,i,1) != substr(old_password,i,1) THEN
differ := differ + 1;
END IF;
END LOOP;
IF differ < 3 THEN
raise_application_error(-20004, 'Password should differ by at least 3 characters');
END IF;
END IF;
END IF;
-- Everything is fine; return TRUE ;
RETURN(TRUE);
END;
/
-- This script alters the default parameters for Password Management
-- This means that all the users on the system have Password Management
-- enabled and set to the following values unless another profile is
-- created with parameter values set to different value or UNLIMITED
-- is created and assigned to the user.
ALTER PROFILE LD_BACKOFFICE LIMIT
PASSWORD_LIFE_TIME 30
PASSWORD_GRACE_TIME 5
PASSWORD_REUSE_TIME 30
PASSWORD_REUSE_MAX 3
FAILED_LOGIN_ATTEMPTS 3
PASSWORD_LOCK_TIME Unlimited
PASSWORD_VERIFY_FUNCTION verify_function;
-----------------------------------------------------------------------------------------------------
-- This script needs to be run to enable the password features.
-- However the default resource parameters can be changed based
-- on the need.
-- A default password complexity function is also provided.
-- This function makes the minimum complexity checks like
-- the minimum length of the password, password not same as the
-- username, etc. The user may enhance this function according to
-- the need.
-- This function must be created in SYS schema.
-- connect sys/
CREATE OR REPLACE FUNCTION verify_function
(username varchar2,
password varchar2,
old_password varchar2)
RETURN boolean IS
n boolean;
m integer;
differ integer;
isdigit boolean;
ischar boolean;
ispunct boolean;
digitarray varchar2(20);
punctarray varchar2(25);
chararray varchar2(52);
BEGIN
digitarray:= '0123456789';
chararray:= 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
punctarray:='!#$%^&*()_+|~-=\`{}[]:"'<>?,./';
-- Check if the password is same as the username
IF NLS_LOWER(password) = NLS_LOWER(username) THEN
raise_application_error(-20001, 'Password same as or similar to user');
END IF;
-- Check for the minimum length of the password
IF length(password) < isdigit =" FALSE">>
ischar:=FALSE;
FOR i IN 1..length(chararray) LOOP
FOR j IN 1..m LOOP
IF substr(password,j,1) = substr(chararray,i,1) THEN
ischar:=TRUE;
GOTO findpunct;
END IF;
END LOOP;
END LOOP;
IF ischar = FALSE THEN
raise_application_error(-20003, 'Password should contain at least one digit, one character and one punctuation except @');
END IF;
-- 3. Check for the punctuation
<
ispunct:=FALSE;
FOR i IN 1..length(punctarray) LOOP
FOR j IN 1..m LOOP
IF substr(password,j,1) = substr(punctarray,i,1) THEN
ispunct:=TRUE;
GOTO endsearch;
END IF;
END LOOP;
END LOOP;
IF ispunct = FALSE THEN
raise_application_error(-20003, 'Password should contain at least one digit, one character and one punctuation except @');
END IF;
<
-- Check if the password differs from the previous password by at least 3 letters
IF old_password IS NOT NULL THEN
differ := length(old_password) - length(password);
IF abs(differ) < 3 THEN
IF length(password) < length(old_password) THEN
m := length(password);
ELSE
m := length(old_password);
END IF;
differ := abs(differ);
FOR i IN 1..m LOOP
IF substr(password,i,1) != substr(old_password,i,1) THEN
differ := differ + 1;
END IF;
END LOOP;
IF differ < 3 THEN
raise_application_error(-20004, 'Password should differ by at least 3 characters');
END IF;
END IF;
END IF;
-- Everything is fine; return TRUE ;
RETURN(TRUE);
END;
/
-- This script alters the default parameters for Password Management
-- This means that all the users on the system have Password Management
-- enabled and set to the following values unless another profile is
-- created with parameter values set to different value or UNLIMITED
-- is created and assigned to the user.
ALTER PROFILE LD_BACKOFFICE LIMIT
PASSWORD_LIFE_TIME 30
PASSWORD_GRACE_TIME 5
PASSWORD_REUSE_TIME 30
PASSWORD_REUSE_MAX 3
FAILED_LOGIN_ATTEMPTS 3
PASSWORD_LOCK_TIME Unlimited
PASSWORD_VERIFY_FUNCTION verify_function;
-----------------------------------------------------------------------------------------------------
Tuesday, June 8, 2010
Restore Database when source database(E:) and destination database location(D:) is different
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO 'D:\archive1011\sns1011\%F';
CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT 'D:\archive1011\sns1011\rmanbackup_db_%d_S_%s_P_%p_T_%t' MAXPIECESIZE 900 M; --if more than one backuppiece
RMAN> list backup of database;
RMAN> CROSSCHECK backup of database;
RMAN> delete expired backup;
RMAN> catalog backuppiece 'D:\archive1011\sns1011\RMANBACKUP_DB_SNS1011_S_149_P_1_T_720717287','D:\archive1011\sns1011\RMANBACKUP_DB_SNS1011_S_149_P_2_T_720717287';-----if more than one backpupiece
SQL> alter database rename file 'E:\SNSD1011\REDO01.ORA' TO 'D:\SNSD1011\REDO01.ORA' ;
SQL> alter database rename file 'E:\SNSD1011\REDO02.ORA' TO 'D:\SNSD1011\REDO02.ORA' ;
SQL> alter database rename file 'E:\SNSD1011\REDO03.ORA' TO 'D:\SNSD1011\REDO03.ORA' ;
SQL> alter database rename file 'E:\SNSD1011\REDO04.ORA' TO 'D:\SNSD1011\REDO04.ORA' ;
SQL> alter database rename file 'E:\SNSD1011\REDO05.ORA' TO 'D:\SNSD1011\REDO05.ORA' ;
run { set until sequence
set newname for datafile 1 to 'D:\SNSD1011\SYSTEM01.ORA' ;
set newname for datafile 1 to 'D:\SNSD1011\UNDOTBS01.ORA' ;
set newname for datafile 1 to 'D:\SNSD1011\SYSAUX01.ORA' ;
set newname for datafile 1 to 'D:\SNSD1011\INDX01.ORA' ;
set newname for datafile 1 to 'D:\SNSD1011\USERS01.ORA' ;
restore database;
switch datafile all;
recover database;
alter database open resetlogs; }
------------------------------------------------------------------------
CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT 'D:\archive1011\sns1011\rmanbackup_db_%d_S_%s_P_%p_T_%t' MAXPIECESIZE 900 M; --if more than one backuppiece
RMAN> list backup of database;
RMAN> CROSSCHECK backup of database;
RMAN> delete expired backup;
RMAN> catalog backuppiece 'D:\archive1011\sns1011\RMANBACKUP_DB_SNS1011_S_149_P_1_T_720717287','D:\archive1011\sns1011\RMANBACKUP_DB_SNS1011_S_149_P_2_T_720717287';-----if more than one backpupiece
SQL> alter database rename file 'E:\SNSD1011\REDO01.ORA' TO 'D:\SNSD1011\REDO01.ORA' ;
SQL> alter database rename file 'E:\SNSD1011\REDO02.ORA' TO 'D:\SNSD1011\REDO02.ORA' ;
SQL> alter database rename file 'E:\SNSD1011\REDO03.ORA' TO 'D:\SNSD1011\REDO03.ORA' ;
SQL> alter database rename file 'E:\SNSD1011\REDO04.ORA' TO 'D:\SNSD1011\REDO04.ORA' ;
SQL> alter database rename file 'E:\SNSD1011\REDO05.ORA' TO 'D:\SNSD1011\REDO05.ORA' ;
run { set until sequence
set newname for datafile 1 to 'D:\SNSD1011\SYSTEM01.ORA' ;
set newname for datafile 1 to 'D:\SNSD1011\UNDOTBS01.ORA' ;
set newname for datafile 1 to 'D:\SNSD1011\SYSAUX01.ORA' ;
set newname for datafile 1 to 'D:\SNSD1011\INDX01.ORA' ;
set newname for datafile 1 to 'D:\SNSD1011\USERS01.ORA' ;
restore database;
switch datafile all;
recover database;
alter database open resetlogs; }
------------------------------------------------------------------------
Oracle 10g 32 bit at Window 7 (64 bit)
go to this folder “E:\Installers\Oracle_10g_1023\Disk1\stage\prereq\db”
locate the file “refhost.xml”, open it with notepad
(write click see in view source)
locate the file “refhost.xml”, open it with notepad
(write click see in view source)
meta tags format
===============================
normally recommend that you cut and paste your META Description into the Abstract and Subject META Tags. This ensures that the search engine spiders fully understand what the page is about. One is not enough!
----------------
ou should cut and paste your
----------------------
Oracle Standby Database / Diaster recovery Solution
-----------------I. Before you get started:-------------------
1. Make sure the operating system and platform architecture on the primary and standby systems are the same;
2. Install Oracle database software without the starter database on the standby server and patch it if necessary. Make sure the same Oracle software release is used on the Primary and Standby databases, and Oracle home paths are identical.
3. Test the Standby Database creation on a test environment first before working on the Production database.
---------II. On the Primary Database Side:---------------------
1. Enable forced logging on your primary database:
SQL> ALTER DATABASE FORCE LOGGING;
2. Create a password file if it doesn't exist.
1) To check if a password file already exists, run the following command:
SQL> select * from v$pwfile_users;
2) If it doesn't exist, use the following command to create one:
$cd %ORACLE_HOME%\database
$orapwd file=pwdPRIM.ora password=xxxxxxxx force=y
(Note: Replace xxxxxxxxx with the password for the SYS user.)
3. Configure a Standby Redo log.
1) The size of the standby redo log files should match the size of the current Primary database online redo log files. To find out the size of your online redo log files:
SQL> select bytes from v$log;
BYTES
----------
52428800
52428800
52428800
2) Use the following command to determine your current log file groups:
SQL> select group#, member from v$logfile;
3) Create standby Redo log groups.
My primary database had 3 log file groups originally and I created 3 standby redo log groups using the following commands:
SQL>ALTER DATABASE ADD STANDBY LOGFILE GROUP 4 SIZE 50M;
SQL>ALTER DATABASE ADD STANDBY LOGFILE GROUP 5 SIZE 50M;
SQL>ALTER DATABASE ADD STANDBY LOGFILE GROUP 6 SIZE 50M;
4) To verify the results of the standby redo log groups creation, run the following query:
SQL>select * from v$standby_log;
4. Enable Archiving on Primary.
If your primary database is not already in Archive Log mode, enable the archive log mode:
SQL>shutdown immediate;
SQL>startup mount;
SQL>alter database archivelog;
SQL>alter database open;
SQL>archive log list;
5. Set Primary Database Initialization Parameters
Create a text initialization parameter file (PFILE) from the server parameter file (SPFILE), to add the new primary role parameters.
1) Create pfile from spfile for the primary database:
SQL>create pfile='d:\oracle\product\10.2.0\db_1\database\pfilePRIM.ora' from spfile;
2) Edit pfilePRIM.ora to add the new primary and standby role parameters:
select * from v$parameter where name like '%log_archive_format%';
select * from v$parameter where name like '%standby%';
select * from v$parameter where name like '%remote_archive_enable%';
select * from v$parameter where name like '%log_archive_dest_state_%';
select * from v$parameter where name like '%convert%';
db_name=PRIM
db_unique_name=PRIM
LOG_ARCHIVE_CONFIG='DG_CONFIG=(PRIM,STAN)'
LOG_ARCHIVE_DEST_1='LOCATION=F:\Oracle\flash_recovery_area\PRIM\ARCHIVELOG VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=PRIM'
LOG_ARCHIVE_DEST_2='SERVICE=STAN LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=STAN'
LOG_ARCHIVE_DEST_STATE_1=ENABLE
LOG_ARCHIVE_DEST_STATE_2=ENABLE
LOG_ARCHIVE_FORMAT=%t_%s_%r.arc
LOG_ARCHIVE_MAX_PROCESSES=30
remote_login_passwordfile='EXCLUSIVE'
FAL_SERVER=STAN
FAL_CLIENT=PRIM
STANDBY_FILE_MANAGEMENT=AUTO
# Specify the location of the standby DB datafiles followed by the primary location;
DB_FILE_NAME_CONVERT='E:\STAN\DATAFILE','E:\PRIM\DATAFILE'
# Specify the location of the standby DB online redo log files followed by the primary location LOG_FILE_NAME_CONVERT='E:\STAN\ONLINELOG','E:\PRIM\ONLINELOG','F:\Oracle\flash_recovery_area\STAN\ONLINELOG','F:\Oracle\flash_recovery_area\PRIM\ONLINELOG'
6. Create spfile from pfile, and restart primary database using the new spfile.
SQL> shutdown immediate;
SQL> startup nomount pfile='\database\pfilePRIM.ora';
SQL>create spfile from pfile='d:\oracle\product\10.2.0\db_1\database\pfilePRIM.ora';
-- Restart the Primary database using the newly created SPFILE.
SQL>shutdown immediate;
SQL>Startup;
----------------III. On the Standby Database Site:---------------
1. Create a copy of Primary database data files on the Standby Server:
On Primary DB:
SQL>shutdown immediate;
On Standby Server (While the Primary database is shut down):
1) Create directory for data files, E:\STAN\DATAFILE.
2) Copy the data files and temp files over.
3) Create directory (multiplexing) for online logs, for example, on Windows, E:\STAN\ONLINELOG and F:\Oracle\flash_recovery_area\STAN\ONLINELOG.
4) Copy the online logs over.
2. Create a Control File for the standby database:
On Primary DB, create a control file for the standby to use:
SQL>startup mount;
SQL>alter database create standby controlfile as 'STAN.ctl;
SQL>ALTER DATABASE OPEN;
3. Copy the Primary DB pfile to Standby server and rename/edit the file.
1) Copy pfilePRIM.ora from Primary server to Standby server, to database folder on Windows or dbs folder.
2) Rename it to pfileSTAN.ora, and modify the file as follows
*.audit_file_dest='E:\oracle\product\10.2.0\admin\STAN\adump'
*.background_dump_dest='E:\oracle\product\10.2.0\admin\STAN\bdump'
*.core_dump_dest='E:\oracle\product\10.2.0\admin\STAN\cdump'
*.user_dump_dest='E:\oracle\product\10.2.0\admin\STAN\udump'
*.compatible='10.2.0.3.0'
control_files='E:\STAN\CONTROLFILE\STAN.CTL','F:\ORACLE\FLASH_RECOVERY_AREA\STAN\CONTROLFILE\STAN.CTL'
db_name='PRIM'
db_unique_name=STAN
LOG_ARCHIVE_CONFIG='DG_CONFIG=(PRIM,STAN)'
LOG_ARCHIVE_DEST_1='LOCATION=F:\Oracle\flash_recovery_area\STAN\ARCHIVELOG VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=STAN'
LOG_ARCHIVE_DEST_2= 'SERVICE=PRIM LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=PRIM'
LOG_ARCHIVE_DEST_STATE_1=ENABLE
LOG_ARCHIVE_DEST_STATE_2=ENABLE
LOG_ARCHIVE_FORMAT=%t_%s_%r.arc
LOG_ARCHIVE_MAX_PROCESSES=30
FAL_SERVER=PRIM
FAL_CLIENT=STAN
remote_login_passwordfile='EXCLUSIVE'
# Specify the location of the primary DB datafiles followed by the standby location
DB_FILE_NAME_CONVERT='E:\PRIM\DATAFILE','E:\STAN\DATAFILE'
# Specify the location of the primary DB online redo log files followed by the standby location
LOG_FILE_NAME_CONVERT='E:\PRIM\ONLINELOG','E:\STAN\ONLINELOG','F:\Oracle\flash_recovery_area\PRIM\ONLINELOG','F:\Oracle\flash_recovery_area\STAN\ONLINELOG'
STANDBY_FILE_MANAGEMENT=AUTO
4. On Standby server, create all required directories for dump and archived log destination:
Create directories adump, bdump, cdump, udump, and archived log destinations for the standby database.
5. Copy the standby control file 'STAN.ctl' from primary to standby destinations ;
6. Copy the Primary password file to standby and rename it to pwdSTAN.ora.
On Windows copy it to \database folder And then rename the password file.
7. For Windows, create a Windows-based services (optional):
$oradim –NEW –SID STAN –STARTMODE manual
8. Configure listeners for the primary and standby databases.
1) On Primary system: use Oracle Net Manager to configure a listener for PRIM and STAN. Then restart the listener.
$lsnrctl stop
$lsnrctl start
2) On Standby server: use Net Manager to configure a listener for PRIM and STAN. Then restart the listener.
$lsnrctl stop
$lsnrctl start
9. Create Oracle Net service names.
1) On Primary system: use Oracle Net Manager to create network service names for PRIM and STAN. Check tnsping to both services:
$tnsping PRIM
$tnsping STAN
2) On Standby system: use Oracle Net Manager to create network service names for PRIM and STAN. Check tnsping to both services:
$tnsping PRIM
$tnsping STAN
10. On Standby server, setup the environment variables to point to the Standby database.
Set up ORACLE_HOME and ORACLE_SID.
11. Start up nomount the standby database and generate a spfile.
SQL>startup nomount pfile='\database\pfileSTAN.ora';
SQL>create spfile from pfile='\database\pfileSTAN.ora';
-- Restart the Standby database using the newly created SPFILE.
SQL>shutdown immediate;
SQL>startup mount;
12. Start Redo apply
1) On the standby database, to start redo apply:
SQL>alter database recover managed standby database disconnect from session;
If you ever need to stop log apply services:
SQL> alter database recover managed standby database cancel;
13. Verify the standby database is performing properly:
1) On Standby perform a query:
SQL>select sequence#, first_time, next_time from v$archived_log;
2) On Primary, force a logfile switch:
SQL>alter system switch logfile;
3) On Standby, verify the archived redo log files were applied:
SQL>select sequence#, applied from v$archived_log order by sequence#;
14. If you want the redo data to be applied as it is received without waiting for the current standby redo log file to be archived, enable the real-time apply.
To start real-time apply:
SQL> alter database recover managed standby database using current logfile disconnect;
15. To create multiple standby databases, repeat this procedure.
---------IV. Maintenance:-------
1. Check the alert log files of Primary and Standby databases frequently to monitor the database operations in a Data Guard environment.
2. Cleanup the archive logs on Primary and Standby servers.
I scheduled weekly Hot Whole database backup against my primary database that also backs up and delete the archived logs on Primary.
For the standby database, I run RMAN to backup and delete the archive logs once per week.
$rman target /@STAN;
RMAN>backup archivelog all delete input;
To delete the archivelog backup files on the standby server, I run the following once a month:
RMAN>delete backupset;
3. Password management
The password for the SYS user must be identical on every system for the redo data transmission to succeed. If you change the password for SYS on Primary database, you will have to update the password file for Standby database accordingly, otherwise the logs won't be shipped to the standby server.
Refer to section II.2, step 2 to update/recreate password file for the Standby database.
1. Make sure the operating system and platform architecture on the primary and standby systems are the same;
2. Install Oracle database software without the starter database on the standby server and patch it if necessary. Make sure the same Oracle software release is used on the Primary and Standby databases, and Oracle home paths are identical.
3. Test the Standby Database creation on a test environment first before working on the Production database.
---------II. On the Primary Database Side:---------------------
1. Enable forced logging on your primary database:
SQL> ALTER DATABASE FORCE LOGGING;
2. Create a password file if it doesn't exist.
1) To check if a password file already exists, run the following command:
SQL> select * from v$pwfile_users;
2) If it doesn't exist, use the following command to create one:
$cd %ORACLE_HOME%\database
$orapwd file=pwdPRIM.ora password=xxxxxxxx force=y
(Note: Replace xxxxxxxxx with the password for the SYS user.)
3. Configure a Standby Redo log.
1) The size of the standby redo log files should match the size of the current Primary database online redo log files. To find out the size of your online redo log files:
SQL> select bytes from v$log;
BYTES
----------
52428800
52428800
52428800
2) Use the following command to determine your current log file groups:
SQL> select group#, member from v$logfile;
3) Create standby Redo log groups.
My primary database had 3 log file groups originally and I created 3 standby redo log groups using the following commands:
SQL>ALTER DATABASE ADD STANDBY LOGFILE GROUP 4 SIZE 50M;
SQL>ALTER DATABASE ADD STANDBY LOGFILE GROUP 5 SIZE 50M;
SQL>ALTER DATABASE ADD STANDBY LOGFILE GROUP 6 SIZE 50M;
4) To verify the results of the standby redo log groups creation, run the following query:
SQL>select * from v$standby_log;
4. Enable Archiving on Primary.
If your primary database is not already in Archive Log mode, enable the archive log mode:
SQL>shutdown immediate;
SQL>startup mount;
SQL>alter database archivelog;
SQL>alter database open;
SQL>archive log list;
5. Set Primary Database Initialization Parameters
Create a text initialization parameter file (PFILE) from the server parameter file (SPFILE), to add the new primary role parameters.
1) Create pfile from spfile for the primary database:
SQL>create pfile='d:\oracle\product\10.2.0\db_1\database\pfilePRIM.ora' from spfile;
2) Edit pfilePRIM.ora to add the new primary and standby role parameters:
select * from v$parameter where name like '%log_archive_format%';
select * from v$parameter where name like '%standby%';
select * from v$parameter where name like '%remote_archive_enable%';
select * from v$parameter where name like '%log_archive_dest_state_%';
select * from v$parameter where name like '%convert%';
db_name=PRIM
db_unique_name=PRIM
LOG_ARCHIVE_CONFIG='DG_CONFIG=(PRIM,STAN)'
LOG_ARCHIVE_DEST_1='LOCATION=F:\Oracle\flash_recovery_area\PRIM\ARCHIVELOG VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=PRIM'
LOG_ARCHIVE_DEST_2='SERVICE=STAN LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=STAN'
LOG_ARCHIVE_DEST_STATE_1=ENABLE
LOG_ARCHIVE_DEST_STATE_2=ENABLE
LOG_ARCHIVE_FORMAT=%t_%s_%r.arc
LOG_ARCHIVE_MAX_PROCESSES=30
remote_login_passwordfile='EXCLUSIVE'
FAL_SERVER=STAN
FAL_CLIENT=PRIM
STANDBY_FILE_MANAGEMENT=AUTO
# Specify the location of the standby DB datafiles followed by the primary location;
DB_FILE_NAME_CONVERT='E:\STAN\DATAFILE','E:\PRIM\DATAFILE'
# Specify the location of the standby DB online redo log files followed by the primary location LOG_FILE_NAME_CONVERT='E:\STAN\ONLINELOG','E:\PRIM\ONLINELOG','F:\Oracle\flash_recovery_area\STAN\ONLINELOG','F:\Oracle\flash_recovery_area\PRIM\ONLINELOG'
6. Create spfile from pfile, and restart primary database using the new spfile.
SQL> shutdown immediate;
SQL> startup nomount pfile='\database\pfilePRIM.ora';
SQL>create spfile from pfile='d:\oracle\product\10.2.0\db_1\database\pfilePRIM.ora';
-- Restart the Primary database using the newly created SPFILE.
SQL>shutdown immediate;
SQL>Startup;
----------------III. On the Standby Database Site:---------------
1. Create a copy of Primary database data files on the Standby Server:
On Primary DB:
SQL>shutdown immediate;
On Standby Server (While the Primary database is shut down):
1) Create directory for data files, E:\STAN\DATAFILE.
2) Copy the data files and temp files over.
3) Create directory (multiplexing) for online logs, for example, on Windows, E:\STAN\ONLINELOG and F:\Oracle\flash_recovery_area\STAN\ONLINELOG.
4) Copy the online logs over.
2. Create a Control File for the standby database:
On Primary DB, create a control file for the standby to use:
SQL>startup mount;
SQL>alter database create standby controlfile as 'STAN.ctl;
SQL>ALTER DATABASE OPEN;
3. Copy the Primary DB pfile to Standby server and rename/edit the file.
1) Copy pfilePRIM.ora from Primary server to Standby server, to database folder on Windows or dbs folder.
2) Rename it to pfileSTAN.ora, and modify the file as follows
*.audit_file_dest='E:\oracle\product\10.2.0\admin\STAN\adump'
*.background_dump_dest='E:\oracle\product\10.2.0\admin\STAN\bdump'
*.core_dump_dest='E:\oracle\product\10.2.0\admin\STAN\cdump'
*.user_dump_dest='E:\oracle\product\10.2.0\admin\STAN\udump'
*.compatible='10.2.0.3.0'
control_files='E:\STAN\CONTROLFILE\STAN.CTL','F:\ORACLE\FLASH_RECOVERY_AREA\STAN\CONTROLFILE\STAN.CTL'
db_name='PRIM'
db_unique_name=STAN
LOG_ARCHIVE_CONFIG='DG_CONFIG=(PRIM,STAN)'
LOG_ARCHIVE_DEST_1='LOCATION=F:\Oracle\flash_recovery_area\STAN\ARCHIVELOG VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=STAN'
LOG_ARCHIVE_DEST_2= 'SERVICE=PRIM LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=PRIM'
LOG_ARCHIVE_DEST_STATE_1=ENABLE
LOG_ARCHIVE_DEST_STATE_2=ENABLE
LOG_ARCHIVE_FORMAT=%t_%s_%r.arc
LOG_ARCHIVE_MAX_PROCESSES=30
FAL_SERVER=PRIM
FAL_CLIENT=STAN
remote_login_passwordfile='EXCLUSIVE'
# Specify the location of the primary DB datafiles followed by the standby location
DB_FILE_NAME_CONVERT='E:\PRIM\DATAFILE','E:\STAN\DATAFILE'
# Specify the location of the primary DB online redo log files followed by the standby location
LOG_FILE_NAME_CONVERT='E:\PRIM\ONLINELOG','E:\STAN\ONLINELOG','F:\Oracle\flash_recovery_area\PRIM\ONLINELOG','F:\Oracle\flash_recovery_area\STAN\ONLINELOG'
STANDBY_FILE_MANAGEMENT=AUTO
4. On Standby server, create all required directories for dump and archived log destination:
Create directories adump, bdump, cdump, udump, and archived log destinations for the standby database.
5. Copy the standby control file 'STAN.ctl' from primary to standby destinations ;
6. Copy the Primary password file to standby and rename it to pwdSTAN.ora.
On Windows copy it to \database folder And then rename the password file.
7. For Windows, create a Windows-based services (optional):
$oradim –NEW –SID STAN –STARTMODE manual
8. Configure listeners for the primary and standby databases.
1) On Primary system: use Oracle Net Manager to configure a listener for PRIM and STAN. Then restart the listener.
$lsnrctl stop
$lsnrctl start
2) On Standby server: use Net Manager to configure a listener for PRIM and STAN. Then restart the listener.
$lsnrctl stop
$lsnrctl start
9. Create Oracle Net service names.
1) On Primary system: use Oracle Net Manager to create network service names for PRIM and STAN. Check tnsping to both services:
$tnsping PRIM
$tnsping STAN
2) On Standby system: use Oracle Net Manager to create network service names for PRIM and STAN. Check tnsping to both services:
$tnsping PRIM
$tnsping STAN
10. On Standby server, setup the environment variables to point to the Standby database.
Set up ORACLE_HOME and ORACLE_SID.
11. Start up nomount the standby database and generate a spfile.
SQL>startup nomount pfile='\database\pfileSTAN.ora';
SQL>create spfile from pfile='\database\pfileSTAN.ora';
-- Restart the Standby database using the newly created SPFILE.
SQL>shutdown immediate;
SQL>startup mount;
12. Start Redo apply
1) On the standby database, to start redo apply:
SQL>alter database recover managed standby database disconnect from session;
If you ever need to stop log apply services:
SQL> alter database recover managed standby database cancel;
13. Verify the standby database is performing properly:
1) On Standby perform a query:
SQL>select sequence#, first_time, next_time from v$archived_log;
2) On Primary, force a logfile switch:
SQL>alter system switch logfile;
3) On Standby, verify the archived redo log files were applied:
SQL>select sequence#, applied from v$archived_log order by sequence#;
14. If you want the redo data to be applied as it is received without waiting for the current standby redo log file to be archived, enable the real-time apply.
To start real-time apply:
SQL> alter database recover managed standby database using current logfile disconnect;
15. To create multiple standby databases, repeat this procedure.
---------IV. Maintenance:-------
1. Check the alert log files of Primary and Standby databases frequently to monitor the database operations in a Data Guard environment.
2. Cleanup the archive logs on Primary and Standby servers.
I scheduled weekly Hot Whole database backup against my primary database that also backs up and delete the archived logs on Primary.
For the standby database, I run RMAN to backup and delete the archive logs once per week.
$rman target /@STAN;
RMAN>backup archivelog all delete input;
To delete the archivelog backup files on the standby server, I run the following once a month:
RMAN>delete backupset;
3. Password management
The password for the SYS user must be identical on every system for the redo data transmission to succeed. If you change the password for SYS on Primary database, you will have to update the password file for Standby database accordingly, otherwise the logs won't be shipped to the standby server.
Refer to section II.2, step 2 to update/recreate password file for the Standby database.
Oracle RMAN Duplicate Database / Clone Database
Configure The Network
We need to configure the network so that there is connectivity to the target
(source) database and to the database we want to create (the clone)
Listener file:
# listener.ora Network Configuration File:
c:\oracle\product\10.2.0\client_1/network/admin/listener.
ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = snsdup)
(ORACLE_HOME = c:\oracle\product\10.2.0\client_1)
(SID_NAME = snsdup)
)
(SID_DESC =
(GLOBAL_DBNAME = sns6)
(ORACLE_HOME = c:\oracle\product\10.2.0\client_1)
(SID_NAME = sns6)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = snsdup))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = sns6))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.100.0.32)(PORT = 1521))
)
)
-----------------
Tnsnames file:
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.100.0.32)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = snsdup)
)
)
sns6 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.100.0.32)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = sns6)
)
)
-----------------
Create A Password File For The New Database
[oracle@10.100.0.32 dbs]$ orapwd file=orapwdsnsdup password=oracle
-----------------
Create An Init.Ora For The New Database
Create the pfile using create pfile from spfile from the source database, then
edit it changing all occurrences of old database name to new name
*.audit_file_dest='/oracle/app/admin/snsdup/adump'
*.audit_trail='db'
*.compatible='10.0.2.3.0.0'
#*.control_files='’
*.db_block_size=8192
*.db_create_file_dest='/oracle/app/oradata'
*.db_domain=''
*.db_name='snsdup'
*.db_recovery_file_dest='/oracle/app/flash_recovery_area'
*.db_recovery_file_dest_size=4039114752
*.diagnostic_dest='/oracle/app'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=snsdupXDB)'
*.memory_target=262144000
*.open_cursors=300
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.undo_tablespace='UNDOTBS1'
-----------------
Create The Admin Directory For The New Database
mkdir –p ../snsdup/adump
-----------------
Shutdown And Startup Mount The Source Database
This is required if the source database is in no archivelog mode.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount
ORACLE instance started.
------------------------
Startup Nomount The New Database
SQL> startup nomount
ORACLE instance started.
--------------
Connect To The Target (Source) And Auxiliary (New Clone) Databases Using Rman
[oracle@10.100.0.32 dbs]$ Rman target sys/oracle@sns6 auxiliary sys/oracle@snsdup
--------------
Execute The Duplicate Command
RMAN> DUPLICATE TARGET DATABASE TO snsdup FROM ACTIVE DATABASE;
--------
Remove The Old Pfile
The duplicate database created an spfile that has the new controlfile names in it, the old pfile, without controlfiles can be removed
[oracle@10.100.0.32 dbs]$ rm initsnsdup.ora
--------
Check The New Database
ORACLE_SID=snsdup
ORACLE_HOME=c:\oracle\product\10.2.0\client_1
[oracle@10.100.0.32 dbs]$ sqlplus / as sysdba
SQL> archive log list
SQL> select name from v$datafile;
SQL> show sga
-----------------------------------
We need to configure the network so that there is connectivity to the target
(source) database and to the database we want to create (the clone)
Listener file:
# listener.ora Network Configuration File:
c:\oracle\product\10.2.0\client_1/network/admin/listener.
ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = snsdup)
(ORACLE_HOME = c:\oracle\product\10.2.0\client_1)
(SID_NAME = snsdup)
)
(SID_DESC =
(GLOBAL_DBNAME = sns6)
(ORACLE_HOME = c:\oracle\product\10.2.0\client_1)
(SID_NAME = sns6)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = snsdup))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = sns6))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.100.0.32)(PORT = 1521))
)
)
-----------------
Tnsnames file:
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.100.0.32)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = snsdup)
)
)
sns6 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.100.0.32)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = sns6)
)
)
-----------------
Create A Password File For The New Database
[oracle@10.100.0.32 dbs]$ orapwd file=orapwdsnsdup password=oracle
-----------------
Create An Init.Ora For The New Database
Create the pfile using create pfile from spfile from the source database, then
edit it changing all occurrences of old database name to new name
*.audit_file_dest='/oracle/app/admin/snsdup/adump'
*.audit_trail='db'
*.compatible='10.0.2.3.0.0'
#*.control_files='’
*.db_block_size=8192
*.db_create_file_dest='/oracle/app/oradata'
*.db_domain=''
*.db_name='snsdup'
*.db_recovery_file_dest='/oracle/app/flash_recovery_area'
*.db_recovery_file_dest_size=4039114752
*.diagnostic_dest='/oracle/app'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=snsdupXDB)'
*.memory_target=262144000
*.open_cursors=300
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.undo_tablespace='UNDOTBS1'
-----------------
Create The Admin Directory For The New Database
mkdir –p ../snsdup/adump
-----------------
Shutdown And Startup Mount The Source Database
This is required if the source database is in no archivelog mode.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount
ORACLE instance started.
------------------------
Startup Nomount The New Database
SQL> startup nomount
ORACLE instance started.
--------------
Connect To The Target (Source) And Auxiliary (New Clone) Databases Using Rman
[oracle@10.100.0.32 dbs]$ Rman target sys/oracle@sns6 auxiliary sys/oracle@snsdup
--------------
Execute The Duplicate Command
RMAN> DUPLICATE TARGET DATABASE TO snsdup FROM ACTIVE DATABASE;
--------
Remove The Old Pfile
The duplicate database created an spfile that has the new controlfile names in it, the old pfile, without controlfiles can be removed
[oracle@10.100.0.32 dbs]$ rm initsnsdup.ora
--------
Check The New Database
ORACLE_SID=snsdup
ORACLE_HOME=c:\oracle\product\10.2.0\client_1
[oracle@10.100.0.32 dbs]$ sqlplus / as sysdba
SQL> archive log list
SQL> select name from v$datafile;
SQL> show sga
-----------------------------------
Thursday, May 20, 2010
Oracle Export Backup Job Email Notification
---------------------------------------------Export.bat---------------------------
@ECHO off
SETLOCAL
IF [%1]==[] goto s_start
ECHO GETDATE.cmd
ECHO Returns the date independent of regional settings
ECHO Creates the environment variables %v_year% %v_month% %v_day%
ECHO.
ECHO SYNTAX
ECHO GETDATE
ECHO.
ECHO.
GOTO :eof
:s_start
FOR /f "tokens=2-4 skip=1 delims=(-)" %%G IN ('echo.^|date') DO (
FOR /f "tokens=2 delims= " %%A IN ('date /t') DO (
SET v_first=%%G
SET v_second=%%H
SET v_third=%%I
SET v_all=%%A
)
)
SET %v_first%=%v_all:~0,2%
SET %v_second%=%v_all:~3,2%
SET %v_third%=%v_all:~8,2%
rem ECHO Today is Year: [%yy%] Month: [%mm%] Day: [%dd%]
ENDLOCAL & SET v_year=%yy%& SET v_month=%mm%& SET v_day=%dd%
ren C:\00\1.txt USED66665_%v_month%%v_day%%v_year%.txt
exp snsexport/snsexp@sns1011srv owner=(ldbo) file=G:\EXPORT\sns1011ora_%v_day%%v_month%%v_year%.DMP LOG=G:\EXPORT\sns1011ora_%v_day%%v_month%%v_year%.LOG
if exist G:\EXPORT\sns1011ora_%v_day%%v_month%%v_year%.DMP GOTO COMPLETED
if not exist G:\EXPORT\sns1011ora_%v_day%%v_month%%v_year%.DMP GOTO FAILED
:COMPLETED
Cscript.exe C:\Email_export.vbs
exit
:FAILED
Cscript.exe C:\Emailfail_export.vbs
---------------------------------------------Email_export.vbs---------------------------
Set wshShell = WScript.CreateObject( "WScript.Shell" )
strComputerName = wshShell.ExpandEnvironmentStrings( "%COMPUTERNAME%" )
'WScript.Echo "Computer Name: " & strComputerName
Set objMessage = CreateObject("CDO.Message")
objMessage.Subject = "LD Oracle Export Backup Job Completed"
objMessage.From = "dbanotification@uniconindia.in"
objMessage.To = "dbamonitoring@uniconindia.in"
objMessage.TextBody = "LD Oracle Export Backup Job Completed Successfully on " & strComputerName & " at " & FormatDateTime(Date,1) & " " & Time
'==This section provides the configuration information for the remote SMTP server.
'==Normally you will only change the server name or IP.
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
'Name or IP of Remote SMTP Server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "10.100.0.94"
'Server port (typically 25)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25
objMessage.Configuration.Fields.Update
'==End remote SMTP server configuration section==
objMessage.Send
---------------------------------------------Emailfail_export.vbs---------------------------
Set objMessage = CreateObject("CDO.Message")
strComputer = "." ' Name of the computer
objMessage.Subject = "LD Oracle Job Failed ORANOP02P"
objMessage.From = "dbanotification@uniconindia.in"
objMessage.To = "kgupta2@uniconindia.in"
objMessage.TextBody = "LD Oracle Job Failed on ORANOP02P !" & strComputer
'==This section provides the configuration information for the remote SMTP server.
'==Normally you will only change the server name or IP.
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
'Name or IP of Remote SMTP Server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "10.100.0.94"
'Server port (typically 25)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25
objMessage.Configuration.Fields.Update
'==End remote SMTP server configuration section==
objMessage.Send
---------------------------------
@ECHO off
SETLOCAL
IF [%1]==[] goto s_start
ECHO GETDATE.cmd
ECHO Returns the date independent of regional settings
ECHO Creates the environment variables %v_year% %v_month% %v_day%
ECHO.
ECHO SYNTAX
ECHO GETDATE
ECHO.
ECHO.
GOTO :eof
:s_start
FOR /f "tokens=2-4 skip=1 delims=(-)" %%G IN ('echo.^|date') DO (
FOR /f "tokens=2 delims= " %%A IN ('date /t') DO (
SET v_first=%%G
SET v_second=%%H
SET v_third=%%I
SET v_all=%%A
)
)
SET %v_first%=%v_all:~0,2%
SET %v_second%=%v_all:~3,2%
SET %v_third%=%v_all:~8,2%
rem ECHO Today is Year: [%yy%] Month: [%mm%] Day: [%dd%]
ENDLOCAL & SET v_year=%yy%& SET v_month=%mm%& SET v_day=%dd%
ren C:\00\1.txt USED66665_%v_month%%v_day%%v_year%.txt
exp snsexport/snsexp@sns1011srv owner=(ldbo) file=G:\EXPORT\sns1011ora_%v_day%%v_month%%v_year%.DMP LOG=G:\EXPORT\sns1011ora_%v_day%%v_month%%v_year%.LOG
if exist G:\EXPORT\sns1011ora_%v_day%%v_month%%v_year%.DMP GOTO COMPLETED
if not exist G:\EXPORT\sns1011ora_%v_day%%v_month%%v_year%.DMP GOTO FAILED
:COMPLETED
Cscript.exe C:\Email_export.vbs
exit
:FAILED
Cscript.exe C:\Emailfail_export.vbs
---------------------------------------------Email_export.vbs---------------------------
Set wshShell = WScript.CreateObject( "WScript.Shell" )
strComputerName = wshShell.ExpandEnvironmentStrings( "%COMPUTERNAME%" )
'WScript.Echo "Computer Name: " & strComputerName
Set objMessage = CreateObject("CDO.Message")
objMessage.Subject = "LD Oracle Export Backup Job Completed"
objMessage.From = "dbanotification@uniconindia.in"
objMessage.To = "dbamonitoring@uniconindia.in"
objMessage.TextBody = "LD Oracle Export Backup Job Completed Successfully on " & strComputerName & " at " & FormatDateTime(Date,1) & " " & Time
'==This section provides the configuration information for the remote SMTP server.
'==Normally you will only change the server name or IP.
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
'Name or IP of Remote SMTP Server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "10.100.0.94"
'Server port (typically 25)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25
objMessage.Configuration.Fields.Update
'==End remote SMTP server configuration section==
objMessage.Send
---------------------------------------------Emailfail_export.vbs---------------------------
Set objMessage = CreateObject("CDO.Message")
strComputer = "." ' Name of the computer
objMessage.Subject = "LD Oracle Job Failed ORANOP02P"
objMessage.From = "dbanotification@uniconindia.in"
objMessage.To = "kgupta2@uniconindia.in"
objMessage.TextBody = "LD Oracle Job Failed on ORANOP02P !" & strComputer
'==This section provides the configuration information for the remote SMTP server.
'==Normally you will only change the server name or IP.
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
'Name or IP of Remote SMTP Server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "10.100.0.94"
'Server port (typically 25)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25
objMessage.Configuration.Fields.Update
'==End remote SMTP server configuration section==
objMessage.Send
---------------------------------
Oracler RMAN Job Email Notification
------------------------------------------------RMAN.bat--------------------
@ECHO off
SETLOCAL
IF [%1]==[] goto s_start
ECHO GETDATE.cmd
ECHO Returns the date independent of regional settings
ECHO Creates the environment variables %v_year% %v_month% %v_day%
ECHO.
ECHO SYNTAX
ECHO GETDATE
ECHO.
ECHO.
GOTO :eof
:s_start
FOR /f "tokens=2-4 skip=1 delims=(-)" %%G IN ('echo.^|date') DO (
FOR /f "tokens=2 delims= " %%A IN ('date /t') DO (
SET v_first=%%G
SET v_second=%%H
SET v_third=%%I
SET v_all=%%A
)
)
SET %v_first%=%v_all:~0,2%
SET %v_second%=%v_all:~3,2%
SET %v_third%=%v_all:~6,4%
rem ECHO Today is Year: [%yy%] Month: [%mm%] Day: [%dd%]
ENDLOCAL & SET v_year=%yy%& SET v_month=%mm%& SET v_day=%dd%
ren C:\00\1.txt USED66665_%v_month%%v_day%%v_year%.txt
set oracle_sid=sns6
RMAN TARGET sys/oracle@sns1011srv cmdfile='c:\rman.sql'
if exist D:\archive0910\sns1011\RMANBACKUP_DB_SNS1011_%v_day%%v_month%%v_year% GOTO COMPLETED
if not exist D:\archive0910\sns1011\RMANBACKUP_DB_SNS1011_%v_day%%v_month%%v_year% GOTO FAILED
:COMPLETED
Cscript.exe C:\Email_rman.vbs
exit
:FAILED
Cscript.exe C:\Emailfail_rman.vbs
-----------------------------rman.sql----------------------------
show all;
BACKUP AS COMPRESSED BACKUPSET DATABASE FORMAT 'D:\archive0910\sns1011\rmanbackup_db_%d_%D%M%Y';
exit;
---------------------------------Email_rman.vbs-----------------------------------
Set wshShell = WScript.CreateObject( "WScript.Shell" )
strComputerName = wshShell.ExpandEnvironmentStrings( "%COMPUTERNAME%" )
'WScript.Echo "Computer Name: " & strComputerName
Set objMessage = CreateObject("CDO.Message")
objMessage.Subject = "LD Oracle RMAN Job Completed Successfully"
objMessage.From = "rjain@uniconindia.in"
objMessage.To = "kgupta2@uniconindia.in"
objMessage.TextBody = "LD Oracle RMAN Backup Job Completed Successfully on " & strComputerName & " at " & FormatDateTime(Date,1) & " " & Time
'==This section provides the configuration information for the remote SMTP server.
'==Normally you will only change the server name or IP.
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
'Name or IP of Remote SMTP Server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "10.100.0.94"
'Server port (typically 25)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25
objMessage.Configuration.Fields.Update
'==End remote SMTP server configuration section==
objMessage.Send
----------------------------------Emaildail_rman.vbs--------------------------------
Set objMessage = CreateObject("CDO.Message")
strComputer = "." ' Name of the computer
objMessage.Subject = "LD Oracle RMAN Job Failed ORANOP02P"
objMessage.From = "dbanotification@uniconindia.in"
objMessage.To = "kgupta2@uniconindia.in"
objMessage.TextBody = "LD Oracle RMAN Job Failed on ORANOP02P !" & strComputer
'==This section provides the configuration information for the remote SMTP server.
'==Normally you will only change the server name or IP.
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
'Name or IP of Remote SMTP Server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "10.100.0.94"
'Server port (typically 25)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25
objMessage.Configuration.Fields.Update
'==End remote SMTP server configuration section==
objMessage.Send
------------------------------------------
@ECHO off
SETLOCAL
IF [%1]==[] goto s_start
ECHO GETDATE.cmd
ECHO Returns the date independent of regional settings
ECHO Creates the environment variables %v_year% %v_month% %v_day%
ECHO.
ECHO SYNTAX
ECHO GETDATE
ECHO.
ECHO.
GOTO :eof
:s_start
FOR /f "tokens=2-4 skip=1 delims=(-)" %%G IN ('echo.^|date') DO (
FOR /f "tokens=2 delims= " %%A IN ('date /t') DO (
SET v_first=%%G
SET v_second=%%H
SET v_third=%%I
SET v_all=%%A
)
)
SET %v_first%=%v_all:~0,2%
SET %v_second%=%v_all:~3,2%
SET %v_third%=%v_all:~6,4%
rem ECHO Today is Year: [%yy%] Month: [%mm%] Day: [%dd%]
ENDLOCAL & SET v_year=%yy%& SET v_month=%mm%& SET v_day=%dd%
ren C:\00\1.txt USED66665_%v_month%%v_day%%v_year%.txt
set oracle_sid=sns6
RMAN TARGET sys/oracle@sns1011srv cmdfile='c:\rman.sql'
if exist D:\archive0910\sns1011\RMANBACKUP_DB_SNS1011_%v_day%%v_month%%v_year% GOTO COMPLETED
if not exist D:\archive0910\sns1011\RMANBACKUP_DB_SNS1011_%v_day%%v_month%%v_year% GOTO FAILED
:COMPLETED
Cscript.exe C:\Email_rman.vbs
exit
:FAILED
Cscript.exe C:\Emailfail_rman.vbs
-----------------------------rman.sql----------------------------
show all;
BACKUP AS COMPRESSED BACKUPSET DATABASE FORMAT 'D:\archive0910\sns1011\rmanbackup_db_%d_%D%M%Y';
exit;
---------------------------------Email_rman.vbs-----------------------------------
Set wshShell = WScript.CreateObject( "WScript.Shell" )
strComputerName = wshShell.ExpandEnvironmentStrings( "%COMPUTERNAME%" )
'WScript.Echo "Computer Name: " & strComputerName
Set objMessage = CreateObject("CDO.Message")
objMessage.Subject = "LD Oracle RMAN Job Completed Successfully"
objMessage.From = "rjain@uniconindia.in"
objMessage.To = "kgupta2@uniconindia.in"
objMessage.TextBody = "LD Oracle RMAN Backup Job Completed Successfully on " & strComputerName & " at " & FormatDateTime(Date,1) & " " & Time
'==This section provides the configuration information for the remote SMTP server.
'==Normally you will only change the server name or IP.
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
'Name or IP of Remote SMTP Server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "10.100.0.94"
'Server port (typically 25)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25
objMessage.Configuration.Fields.Update
'==End remote SMTP server configuration section==
objMessage.Send
----------------------------------Emaildail_rman.vbs--------------------------------
Set objMessage = CreateObject("CDO.Message")
strComputer = "." ' Name of the computer
objMessage.Subject = "LD Oracle RMAN Job Failed ORANOP02P"
objMessage.From = "dbanotification@uniconindia.in"
objMessage.To = "kgupta2@uniconindia.in"
objMessage.TextBody = "LD Oracle RMAN Job Failed on ORANOP02P !" & strComputer
'==This section provides the configuration information for the remote SMTP server.
'==Normally you will only change the server name or IP.
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
'Name or IP of Remote SMTP Server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "10.100.0.94"
'Server port (typically 25)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25
objMessage.Configuration.Fields.Update
'==End remote SMTP server configuration section==
objMessage.Send
------------------------------------------
Tuesday, April 20, 2010
Reuse statements, cursor_sharing=force
Reuse statements
select * from emp where ename = :EMPNAME
select * from v$parameter where name like '%cursor_sharing%';
cursor_sharing=force
The kernel parameter cursor_sharing defaults to EXACT, but can be set to FORCE or SIMILAR in order to have the database convert literals to bind variables before parsing the statement.
Setting cursor_sharing =force greatly reduced the contention on the library cache and reduced CPU consumption. The end users reported a 75 percent improvement in overall performance.
Our queries use a lot of bind variables, by design. In recent benchmarks, CURSOR_SHARING=FORCE was helpful for benchmark runs reducing query execution time by several times.
However, for a specific query involving bind variables, using CURSOR_SHARING=FORCE was very much slower than if executed while CURSOR_SHARING=EXACT.
This is probably a bug. Cursor_sharing = force is not really reliable. We hash the value of the statement and then go looking for a matching hash, regardless of how many users are on the system or how many times the statement has been issued or even what the statement looks like. Force means force, regardless of what is going on, we are going to force the
sharing of cursors. This leads to problems like what you are seeing and the use of suboptimal plans. You can attempt to tune around the sub-optimal plan but you may find that there are a number of queries with that problem. The other possibility is to set cursor_sharing = exact. That will prevent this problem from occuring.
select * from emp where ename = :EMPNAME
select * from v$parameter where name like '%cursor_sharing%';
cursor_sharing=force
The kernel parameter cursor_sharing defaults to EXACT, but can be set to FORCE or SIMILAR in order to have the database convert literals to bind variables before parsing the statement.
Setting cursor_sharing =force greatly reduced the contention on the library cache and reduced CPU consumption. The end users reported a 75 percent improvement in overall performance.
Our queries use a lot of bind variables, by design. In recent benchmarks, CURSOR_SHARING=FORCE was helpful for benchmark runs reducing query execution time by several times.
However, for a specific query involving bind variables, using CURSOR_SHARING=FORCE was very much slower than if executed while CURSOR_SHARING=EXACT.
This is probably a bug. Cursor_sharing = force is not really reliable. We hash the value of the statement and then go looking for a matching hash, regardless of how many users are on the system or how many times the statement has been issued or even what the statement looks like. Force means force, regardless of what is going on, we are going to force the
sharing of cursors. This leads to problems like what you are seeing and the use of suboptimal plans. You can attempt to tune around the sub-optimal plan but you may find that there are a number of queries with that problem. The other possibility is to set cursor_sharing = exact. That will prevent this problem from occuring.
Oracle Flushing-Pinning PL/SQL packages, FLUSH SHARED POOL
Oracle Flushing-Pinning PL/SQL packages, FLUSH SHARED POOL
http://www.remote-dba.cc/oracle_tips_flushing_secrets.htm
1. Pinning all commonly used PL/SQL packages.
The initial call to a package causes the whole package to be loaded into the shared pool. For large packages this may represent an unacceptable delay for two reasons. First the size of the package causes a delay in load time. Second if the shared pool is already full, several smaller objects may need to be aged out to make room for it. In these circumstances, performance can be improved by pinning large packages in the shared pool.
Under normal circumstances, objects in the shared pool are placed on a least recently used (LRU) list. If the shared pool is full and a new object must be loaded, items on the LRU list are aged out. Subsequent calls to objects that have been aged out result in them being reloaded into the shared pool.
The processes of pinning objects in the shared pool removes them from the LRU list so they are no longer available to be aged out, regardless of usage. The process of pinning objects in the shared pool is achieved using the dbms_shared_pool package.
http://www.dba-oracle.com/plsql/t_plsql_pinning_pkgs.htm
http://www.oracle-training.cc/oracle_tips_pinning_packages.htm
SQL> conn sys/password as sysdba
Connected.
SQL> @$ORACLE_HOME/rdbms/admin/dbmspool.sql
Pinning and unpinning objects in the shared pool is achieved using the keep and unkeep procedures, both of which accept the same case-insensitive parameters.
PROCEDURE keep (
name VARCHAR2,
flag CHAR DEFAULT 'P'
)
PROCEDURE unkeep (
name VARCHAR2,
flag CHAR DEFAULT 'P'
)
P - Package, Procedure or Function. This is the default value.
T - Type.
R - Trigger.
Q - Sequence.
C – Cursor.
SQL> conn sys/password as sysdba
Connected.
SQL> SELECT address || ',' || hash_value FROM v$open_cursor WHERE rownum = 1;
SQL> EXEC DBMS_SHARED_POOL.keep(‘,2. FLUSH SHARED POOL
Periodically issuing the--
ALTER SYSTEM FLUSH SHARED POOL;
alter system flush buffer_pool;
----------
This will "flush" out, or clear, all SQL statements that are in the Shared Pool Area. Oracle keeps track of each SQL statement that users execute.
It is stored parsed in memory so that if a SQL statement already has been executed then Oracle does not need to re-parse it. The exception is if the shared pool area is not large enough, then the least recently used SQL statements (except for pinned packages) will be removed from memory.
By flushing the shared pool, all SQL statements are removed from memory.
----------
http://www.remote-dba.cc/oracle_tips_flushing_secrets.htm
1. Pinning all commonly used PL/SQL packages.
The initial call to a package causes the whole package to be loaded into the shared pool. For large packages this may represent an unacceptable delay for two reasons. First the size of the package causes a delay in load time. Second if the shared pool is already full, several smaller objects may need to be aged out to make room for it. In these circumstances, performance can be improved by pinning large packages in the shared pool.
Under normal circumstances, objects in the shared pool are placed on a least recently used (LRU) list. If the shared pool is full and a new object must be loaded, items on the LRU list are aged out. Subsequent calls to objects that have been aged out result in them being reloaded into the shared pool.
The processes of pinning objects in the shared pool removes them from the LRU list so they are no longer available to be aged out, regardless of usage. The process of pinning objects in the shared pool is achieved using the dbms_shared_pool package.
http://www.dba-oracle.com/plsql/t_plsql_pinning_pkgs.htm
http://www.oracle-training.cc/oracle_tips_pinning_packages.htm
SQL> conn sys/password as sysdba
Connected.
SQL> @$ORACLE_HOME/rdbms/admin/dbmspool.sql
Pinning and unpinning objects in the shared pool is achieved using the keep and unkeep procedures, both of which accept the same case-insensitive parameters.
PROCEDURE keep (
name VARCHAR2,
flag CHAR DEFAULT 'P'
)
PROCEDURE unkeep (
name VARCHAR2,
flag CHAR DEFAULT 'P'
)
P - Package, Procedure or Function. This is the default value.
T - Type.
R - Trigger.
Q - Sequence.
C – Cursor.
SQL> conn sys/password as sysdba
Connected.
SQL> SELECT address || ',' || hash_value FROM v$open_cursor WHERE rownum = 1;
SQL> EXEC DBMS_SHARED_POOL.keep(‘,
Periodically issuing the--
ALTER SYSTEM FLUSH SHARED POOL;
alter system flush buffer_pool;
----------
This will "flush" out, or clear, all SQL statements that are in the Shared Pool Area. Oracle keeps track of each SQL statement that users execute.
It is stored parsed in memory so that if a SQL statement already has been executed then Oracle does not need to re-parse it. The exception is if the shared pool area is not large enough, then the least recently used SQL statements (except for pinned packages) will be removed from memory.
By flushing the shared pool, all SQL statements are removed from memory.
----------
Tuesday, April 13, 2010
RMAN Block Corruption Detection & Recovery
Block Media Recovery with RMAN
sql>select file# block# from v$database_block_corruption; --corrupted block
Rman>> block recover datafile block ; ------recover corrupted block
Rman>blockrecover corruption list;
RMAN> backup validate check logical database;
sql>select file# block# from v$database_block_corruption; --corrupted block
Rman>> block recover datafile
Rman>blockrecover corruption list;
RMAN> backup validate check logical database;
RMAN recover & open database if archive log missing
RMAN recover and open the database if the archive log required for recovery is missing
1) Set _ALLOW_RESETLOGS_CORRUPTION=TRUE in init.ora file.
2) Startup Mount
3) recover database until cancel using backup controlfile;
4) Alter database open resetlogs.
5) reset undo_management to “manual” in init.ora file.
6) startup database
7) Create new undo tablespace
changed undo_management to “AUTO” and undo_tablespace to “NewTablespace”
1) Set _ALLOW_RESETLOGS_CORRUPTION=TRUE in init.ora file.
2) Startup Mount
3) recover database until cancel using backup controlfile;
4) Alter database open resetlogs.
5) reset undo_management to “manual” in init.ora file.
6) startup database
7) Create new undo tablespace
changed undo_management to “AUTO” and undo_tablespace to “NewTablespace”
RMAN recovery from loss of all online redo log files
RMAN recovery from loss of all online redo log files
SQL> select thread#,sequence#,status from v$Log;
set oracle_sid=sns6
rman Target SYS/linux@sns1011srv
RUN
{
SHUTDOWN IMMEDIATE;
STARTUP MOUNT;
set until sequence 2021 thread 1;
ALLOCATE CHANNEL ch1 TYPE Disk;
RESTORE DATABASE;
RECOVER DATABASE;
ALTER DATABASE OPEN RESETLOGS;
}
SQL> select thread#,sequence#,status from v$Log;
set oracle_sid=sns6
rman Target SYS/linux@sns1011srv
RUN
{
SHUTDOWN IMMEDIATE;
STARTUP MOUNT;
set until sequence 2021 thread 1;
ALLOCATE CHANNEL ch1 TYPE Disk;
RESTORE DATABASE;
RECOVER DATABASE;
ALTER DATABASE OPEN RESETLOGS;
}
Monday, April 12, 2010
Uninstall Oracle from Server Completely
Uninstall Oracle
# Stop any Oracle services that have been left running.
Start->Settings->Control Panel->Services
Look for any services with names starting with ‘Oracle’ and stop them.
* Uninstall all Oracle components using the Oracle Universal Installer (OUI).
* Run regedit.exe and delete the HKEY_LOCAL_MACHINE/SOFTWARE/ORACLE key. This contains registry entires for all Oracle products.
* Delete any references to Oracle services left behind in the following part of the registry:
HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Ora*
It should be pretty obvious which ones relate to Oracle.
* Reboot your machine.
* Delete the "C:\Oracle" directory, or whatever directory is your ORACLE_BASE.
* Delete the "C:\Program Files\Oracle" directory.
* Delete the C:\Documents and Settings\All Users\Start Menu\Programs\Oracle*
* Empty the contents of your "c:\temp" directory.
* Empty your recycle bin.
# Delete the Oracle Start Menu shortcuts directory:
Start->Settings->Control Panel->System->Advanced->Environment Variables
Edit both of the environment variables user PATH and system PATH. Remove any Oracle references in them.
# Remove Oracle refereces from the path. To edit your path go to:
# Remove Oracle.DataAccess and any Polic.Oracle files from the GAC which is at:
C:\Windows\assembly\
# Stop any Oracle services that have been left running.
Start->Settings->Control Panel->Services
Look for any services with names starting with ‘Oracle’ and stop them.
* Uninstall all Oracle components using the Oracle Universal Installer (OUI).
* Run regedit.exe and delete the HKEY_LOCAL_MACHINE/SOFTWARE/ORACLE key. This contains registry entires for all Oracle products.
* Delete any references to Oracle services left behind in the following part of the registry:
HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Ora*
It should be pretty obvious which ones relate to Oracle.
* Reboot your machine.
* Delete the "C:\Oracle" directory, or whatever directory is your ORACLE_BASE.
* Delete the "C:\Program Files\Oracle" directory.
* Delete the C:\Documents and Settings\All Users\Start Menu\Programs\Oracle*
* Empty the contents of your "c:\temp" directory.
* Empty your recycle bin.
# Delete the Oracle Start Menu shortcuts directory:
Start->Settings->Control Panel->System->Advanced->Environment Variables
Edit both of the environment variables user PATH and system PATH. Remove any Oracle references in them.
# Remove Oracle refereces from the path. To edit your path go to:
# Remove Oracle.DataAccess and any Polic.Oracle files from the GAC which is at:
C:\Windows\assembly\
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