On Tue, Nov 20, 2012 at 12:24 PM, David Fitzjarrell <oratune@xxxxxxxxx>wrote: > They don't, actually. The executions_total is the total executions since > the database was started, the elapsed_time_total is the total since the db > was started and the deltas are for each snapshot and don't roll up. I > came into a shop where a script was running to generate execution time > reports for long-running queries but it didn't take into account that the > deltas don't roll up. I rewrote it to provide total execution times across > snapshots for a given sql_id: > My experience is hit and miss when making calculations with executions_total and executions_delta. The reason being these numbers aren't cumulative to the start of the instance but rather since the time they've been in the library cache. (same as v$sqlstats). So, sometimes for long running queries (that span across multiple snapshots) it's possible that they will never show an execution in AWR. -- //www.freelists.org/webpage/oracle-l