CURSOR_SHARING
The default value of parameter Cursor_sharing is Exact. Who changed it?
CURSOR_SHARING is a parameter which decides whether a SQL send from user is a candidate for fresh parsing or will use an existing plan.
CURSOR_SHARING (Default value: Exact): Share the plan only if text of SQL matches exactly with the text of SQL lying in shared pool.
Note: When cursor_sharing =EXACT it uses the index and is 10times faster than cursor_sharing= SIMILAR
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