dba_hist_snapshot DBA_HIST_SQLTEXT dba_hist_sqlstat gap

Hello

I am trying to get a particular SQL execution statistics. I get the sql_id of DBA_HIST_SQLTEXT but I can not find this sql_id in dba_hist_sqlstat. Now, I understand that not all SQL is captured by dba_hist_sqlstat but this SQL is responsible for 7% of the total db was executed 2300 times in the last 24 hours.


Is there another way to get statistics on executions for this SQL ID?

or

Can someone explain what are the rules based on the stats are stored in dba_hist_sqlstat?

Thank you all,.

Query DBA_HIST_WR_CONTROL to see the interval, the retention and the TOPNSQL parameter.  For TOPNSQL a DEFAULT framework translates:

where statistics_level is typical of 30

100 where statistics_level represents all the

Simply because what a SQL is to consume 7% of the load is perhaps not in the top SQLs in these categories:

Elapsed time

Time CPU

Analyze the calls

Shareable memory

County of version

If the SQL does not 'cut' he is not registered and are not the collected statistics.

David Fitzjarrell

Tags: Database

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