Mview refresh is much slower in 10g
- From: "David Boyd" <davidb158@xxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Wed, 17 Jan 2007 10:29:55 -0500
Hi List,
Recently we upgraded our database from 9.2.0.6 to 10.2.0.2. We have a
materialized view that joins two tables in the same database. It takes 19
min to refresh in 9i, but it takes more than 1 hr in 10g. The select
statement that creates the mview takes 300msec in 9i and 400msec in 10g.
Our system is Solaris 9 for Oracle 9i and Solaris 10 for Oracle 10g. We use
exec dbms_refresh.refresh('"my_schema"."TEST_MV"') to refresh the mview.
Please advise how to speed up the refresh in 10g. Also do we have to
regenerate stats every time after we refresh the mview?
Dave
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- Follow-Ups:
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