PeopleTools and Lifecycle Management - PSFT (MOSC)

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pscbo_stat on larges tables

edited Mar 7, 2016 8:57AM in PeopleTools and Lifecycle Management - PSFT (MOSC) 9 commentsAnswered ✓

Hi all,

This morning we get a performance issue with a big table : PS_ITEM_SF.

An sqr batch was running extremely slow. After looking at the querie, we've noticed that the execution plan used full table scan (on 7 millions rows).

The last table stats analyze was made when we installed the new pscbo_stats (pscbo_stats.gather is executed every night).

Regarding pscbo_stats, it's seems to be ok that the gather stats on that table was not made due to a very low activity on this table.

To solve my issue I did dbms_stats.gather_stats on the table indexes.

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