Disable trigger based on some condition

/* following command will disable the RK Trigger at NON RK Client only */

declare lchost varchar2(100); 

begin

select host into lchost from dba_db_links where db_link='LNK_RAKSHAK'; 

if ( trim(upper(lchost)) like '%RAKSHAK%' ) 

THEN 

  BEGIN

  FOR cur_rec IN (SELECT trigger_name 

                  FROM   dba_triggers WHERE trigger_name like 'TG_RK%') LOOP

    BEGIN

      EXECUTE IMMEDIATE 'alter trigger ldbo.' || cur_rec.trigger_name || ' DISABLE' ;

    END;

  END LOOP;

END;

END IF ;

END;

/