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V$ tables records being moved and made available by DBA_HIST Views

edited Jun 29, 2012 11:44AM in Database Tuning (MOSC) 20 commentsAnswered

At what point does the info leave the v$ tables and make it into dba_hist views?  I have heard two theories:

A) Populated every awr snapshot?

On a space available basis?

C) I would like an exact explanation of when the records are sitting in either location (or both) that I can assure my history reporting as the highest integrity possible. I am specifically concerned with v$session / v$sql and v$sqlarea.

D) At the point they make it into a "hist" table are they removed from the v$table?


Chris Brown

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