2026-03-12 20:23:15

tpt/awr/awr_evh.sql

@@ -0,0 +1,33 @@
+-- Copyright 2018 Tanel Poder. All rights reserved. More info at http://tanelpoder.com
+-- Licensed under the Apache License, Version 2.0. See LICENSE.txt for terms & conditions.
+
+BREAK ON snap_begin SKIP 1 ON snap_end ON event_name
+
+COL event_name FOR A40
+
+SELECT
+    CAST(begin_interval_time AS DATE) snap_begin
+  , TO_CHAR(CAST(end_interval_time AS DATE), 'HH24:MI') snap_end
+  , event_name
+  , wait_time_milli 
+  , CASE WHEN wait_count >= LAG(wait_count) OVER (PARTITION BY event_name,wait_time_milli ORDER BY CAST(begin_interval_time AS DATE)) THEN
+        wait_count - LAG(wait_count) OVER (PARTITION BY event_name,wait_time_milli ORDER BY CAST(begin_interval_time AS DATE)) 
+    ELSE
+        wait_count
+    END wait_count
+FROM
+    dba_hist_snapshot
+  NATURAL JOIN
+    dba_hist_event_histogram
+WHERE
+    begin_interval_time > SYSDATE - 1/24
+--AND event_name LIKE 'ASM file metadata operation'
+--AND event_name LIKE 'flashback log switch'
+-- AND event_name LIKE 'KSV master wait'
+AND wait_class = 'User I/O'
+ORDER BY
+    event_name
+  , snap_begin
+  , wait_time_milli
+/
+