How to keep session history?

I want to store to database users that access OBIEE, but i have problem: If user exit from OBIEE then the session also removed, then how to keep the history of user that access开发者_开发百科ed the OBIEE?

Thank You

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It sounds like you want to enable Usage Tracking in OBIEE.

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You can create an AFTER LOGON trigger, which could insert a row in a table.