2026-03-12 20:23:15

idev/perf_top_10_tables.sql

@@ -0,0 +1,66 @@
+-- +----------------------------------------------------------------------------+
+-- |                          Jeffrey M. Hunter                                 |
+-- |                      jhunter@idevelopment.info                             |
+-- |                         www.idevelopment.info                              |
+-- |----------------------------------------------------------------------------|
+-- |      Copyright (c) 1998-2011 Jeffrey M. Hunter. All rights reserved.       |
+-- |----------------------------------------------------------------------------|
+-- | DATABASE : Oracle                                                          |
+-- | FILE     : perf_top_10_tables.sql                                          |
+-- | CLASS    : Tuning                                                          |
+-- | PURPOSE  : Report on top 10 tables with respect to usage and command type. |
+-- | NOTE     : As with any code, ensure to test this script in a development   |
+-- |            environment before attempting to run it in production.          |
+-- +----------------------------------------------------------------------------+
+
+SET LINESIZE 145
+SET PAGESIZE 9999
+SET VERIFY   off
+
+COLUMN ctyp      FORMAT a13                  HEADING 'Command Type'
+COLUMN obj       FORMAT a30                  HEADING 'Object Name'
+COLUMN noe       FORMAT 999,999,999,999,999  HEADING 'Number of Executions'
+COLUMN gets      FORMAT 999,999,999,999,999  HEADING 'Buffer Gets'
+COLUMN rowp      FORMAT 999,999,999,999,999  HEADING 'Rows Processed'
+
+BREAK ON report
+COMPUTE sum OF noe   ON report
+COMPUTE sum OF gets  ON report
+COMPUTE sum OF rowp  ON report
+
+SELECT
+    ctyp
+  , obj
+  , 0 - exem noe
+  , gets
+  , rowp
+FROM (
+    select distinct exem, ctyp, obj, gets, rowp 
+    from (select
+              DECODE(   s.command_type
+                      , 2,  'Insert into '
+                      , 3,  'Select from '
+                      , 6,  'Update  of  '
+                      , 7,  'Delete from '
+                      , 26, 'Lock    of  ')   ctyp
+            , o.owner || '.' || o.name        obj
+            , SUM(0 - s.executions)           exem
+            , SUM(s.buffer_gets)              gets
+            , SUM(s.rows_processed)           rowp
+          from
+              v$sql                s
+            , v$object_dependency  d
+            , v$db_object_cache    o 
+          where
+                s.command_type  IN (2,3,6,7,26) 
+            and d.from_address  = s.address 
+            and d.to_owner      = o.owner 
+            and d.to_name       = o.name   
+            and o.type          = 'TABLE' 
+          group by
+              s.command_type
+            , o.owner
+            , o.name
+    )
+)
+WHERE rownum <= 10;