RE: Getting multiple explain plans for 1 sql statement

  • From: ryan_gaffuri@xxxxxxxxxxx
  • To: Brandon.Allen@xxxxxxxxxxx, "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
  • Date: Fri, 29 Sep 2006 21:33:32 +0000

why would I spawn child cursors with different execution plans for the exact 
same query with bind variables with the same plan_hash_value? 

-------------- Original message -------------- 
From: "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx> 

I forgot to mention - there could also be different explain plans for different 
child cursors of the same hash_value - check the "child_number" column, and 
then check v$sql_shared_cursor to get an idea of why there are multiple 

From: Allen, Brandon 
Sent: Friday, September 29, 2006 10:54 AM
To: 'ryan_gaffuri@xxxxxxxxxxx'; oracle-l@xxxxxxxxxxxxx
Subject: RE: Getting multiple explain plans for 1 sql statement

It's normal to have multiple rows in v$sql_plan for a given hash_value - each 
row represents a single step of the explain plan.  Do both rows have the same 

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