Re: Slow UPDATE
- From: "jaromir nemec" <jaromir@xxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Sun, 16 May 2004 17:26:20 +0200
Hi Thomas,
----- Original Message -----
From: "Thomas Jeff" <jeff.thomas@xxxxxxxxxxx>
To: <oracle-l@xxxxxxxxxxxxx>
Sent: Friday, May 14, 2004 3:18 PM
Subject: Slow UPDATE
if the table 'OD_CUST_LOCS' has approximately 9682 blocks (=1936484/200) I'm
pretty sure that the update is doing full scan on it.
If you are on 9i check the "real" execution plan in V$SQL_PLAN.
>call count cpu elapsed disk query current
rows
> Execute 200 578.44 789.45 1852160 1936484 218
200
An "elegant" explanation will be that the Informatica ports have different
types than the PK columns. Check the type of the ports 66-68
> WHERE SRC_EFF_FROM_DT = :66 AND KEY_ID = :67 AND SOURCE_ID = :68
regards
Jaromir D.B. Nemec
http://www.db-nemec.com
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