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This discussion is archived
: Jan 24, 2013 3:32 AM by
HASH_VALUE and PLAN_HASH_VALUE has many different CHILD_NUMBER in v$sql_pl
Jan 24, 2013 3:25 AM
Hello dear gurus!
Re: "Primary key" of V$SQLAREA
I think that unique identification of execution plans of each SQL-staement in v$sql_plan goes true
According Alexander Anokhin
Different cursors with different sql_text can has the same sql_id due to possible hash collisions.
Also HASH_VALUE is single unique attribute of plan ,
then why execution plans with the same HASH_VALUE and PLAN_HASH_VALUE has many different child cursors ?
does it is related on a specific reason why the cursor cannot be shared ?
Thanks and regards,
Edited by: Pavel on Jan 24, 2013 1:23 AM
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Re: HASH_VALUE and PLAN_HASH_VALUE has many different CHILD_NUMBER in v$sql_pl
Jan 24, 2013 3:32 AM
in response to
Does this thread help you?
Re: v$sqlarea and plan_hash_value