2026-03-12 20:23:15

timhall/10g/ash.sql

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+-- -----------------------------------------------------------------------------------
+-- File Name    : https://oracle-base.com/dba/10g/ash.sql
+-- Author       : Tim Hall
+-- Description  : Displays the minutes spent on each event for the specified time.
+-- Requirements : Access to the V$ views.
+-- Call Syntax  : @active_session_waits (mins)
+-- Last Modified: 21/12/2004
+-- -----------------------------------------------------------------------------------
+
+SET VERIFY OFF
+
+SELECT NVL(a.event, 'ON CPU') AS event,
+       COUNT(*) AS total_wait_time
+FROM   v$active_session_history a
+WHERE  a.sample_time > SYSDATE - &1/(24*60)
+GROUP BY a.event
+ORDER BY total_wait_time DESC;
+
+SET VERIFY ON