I will explain DBA_Hist_Active_Sess_History | Active Session History (ASH) in Oracle in this post. DBA_Hist_Active_Sess_History | Active Session History (ASH) in Oracle dba_hist_active_sess_history view is one of the most important Oracle views that displays history of the contents of the in-memory active session history of recent system activity. It contains snapshots of V$ACTIVE_SESSION_HISTORY …
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