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TM_DELTA_TIME/TM_DELTA_CPU_TIME/TM_DELTA_DB_TIME

edited Apr 16, 2013 4:11AM in Database Tuning (MOSC) 1 commentAnswered
Hi,
While I do try to utilise OEM, at times when it is unresponsive I'm also trying to put together some scripts using v$active_session_history.

From what I understand, TM_DELTA_TIME/TM_DELTA_CPU_TIME/TM_DELTA_DB_TIME columns in V$Active_Session_History have a relationship as:
1. TM_DELTA_TIME is the overall Sample Time (in microseconds)
2. TM_DELTA_CPU_TIME is the amount of the sample time(TM_DELTA_TIME) the session spent on cpu (doing work)
3. TM_DELTA_DB_TIME is the amount of sample time (TM_DELTA_TIME) the session spent doing work + non-idle wait events.

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