2026-03-12 20:23:15

star/wrkasum.sql

@@ -0,0 +1,71 @@
+-- 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.
+
+-- Purpose:     Show a summary of ACTIVE SQL workareas grouped by operation type (SORT, HASH, etc)
+--              Show both PGA workarea usage and TEMP usage by workareas (workareas don't include
+--              other PGA/TEMP use like PL/SQL arrays and global temporary tables)
+--
+-- Usage:       @wrkasum 1=1 
+--              @wrkasum username='APPUSER'
+--              @wrkasum "program LIKE '%BatchRunner.exe%' AND machine='host123'"
+
+PROMPT Total PGA allocation from V$PROCESS (excluding MGA)
+
+SELECT 
+    inst_id
+  , ROUND(SUM(pga_alloc_mem)/1048576,1) total_alloc_pga
+  , ROUND(SUM(pga_used_mem) /1048576,1) total_used_pga
+FROM
+    gv$process
+GROUP BY
+    inst_id
+ORDER BY
+    inst_id
+/
+
+PROMPT Top allocation reason by PGA memory usage
+
+COL wrkasum_operation_type FOR A30
+ 
+SELECT
+    operation_type wrkasum_operation_type
+  , policy
+  , ROUND(SUM(actual_mem_used)/1048576) actual_pga_mb
+  , ROUND(SUM(work_area_size)/1048576)  allowed_pga_mb
+  , ROUND(SUM(tempseg_size)/1048576)    temp_mb
+  , MAX(number_passes)                  num_passes
+  , COUNT(DISTINCT qcinst_id||','||qcsid)   num_qc
+  , COUNT(DISTINCT inst_id||','||sid)   num_sessions
+FROM
+    gv$sql_workarea_active
+WHERE
+    &1
+GROUP BY 
+    operation_type
+  , policy
+ORDER BY 
+    actual_pga_mb DESC NULLS LAST
+/
+
+PROMPT Top SQL_ID by TEMP usage...
+
+ SELECT
+     sql_id
+   , policy
+   , ROUND(SUM(actual_mem_used)/1048576) actual_pga_mb
+   , ROUND(SUM(work_area_size)/1048576)  allowed_pga_mb
+   , ROUND(SUM(tempseg_size)/1048576)    temp_mb
+   , MAX(number_passes)                  num_passes
+   , COUNT(DISTINCT qcinst_id||','||qcsid)   num_qc
+   , COUNT(DISTINCT inst_id||','||sid)   num_sessions
+ FROM
+     gv$sql_workarea_active
+ WHERE
+     &1
+ GROUP BY 
+     sql_id
+   , policy
+ ORDER BY 
+     temp_mb DESC NULLS LAST
+/
+