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does analyze tables invoke dbms_stats?

edited Jun 4, 2016 5:07AM in Database Utilities (MOSC) 2 commentsAnswered

We are a 2-site organization.

Both sites utilize the same application software (INFOR) albeit different releases.

Site 1: Is running 11G on a 2-node RAC and is in production

Site 2: Is running 12C on a 2-node RAC schedule to go-live June1

One of the applications functions performs poorly - both sites.

Site 1 has implemented "ANALYZE TABLES" on a nightly  schedule.

They are now running this procedure and it is taking hours. The procedure:

1) unlocks the table, 2) Executes "Analyze Table" 3) then re-Locks the table.

This is in lieu of executing "DBMS_STATS" which they contend does not

work (does not improve performance). They also contend the nightly run

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