88 lines
3.0 KiB
MySQL
88 lines
3.0 KiB
MySQL
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/*************************************************************************
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* The contents of this file are subject to the Adempiere License. You may
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* obtain a copy of the License at http://www.adempiere.org/license.html
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* Software is on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either
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* express or implied. See the License for details. Code: Adempiere ERP+CRM
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* Copyright (C) 1999-2001 Jorg Janke, ComPiere, Inc. All Rights Reserved.
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*************************************************************************
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* $Id: DBA_Tables.sql,v 1.1 2006/04/21 17:51:58 jjanke Exp $
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***
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* Title: Table check
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* Description:
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* Assuming
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* db_block_size = 8192
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* db_file_multiblock_read_count = 8
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* the extent size should be
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* small table 320k (8 * 8 * 5)
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* large table 1600k (8 * 8 * 25)
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*
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* a) Build missing Statistics
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* b) Ensure storage is PctIncrease 0 and MaxExtents Unlimited
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* c) Size Table Extents
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*
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************************************************************************/
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DECLARE
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SmallTableSize NUMBER := 320 * 1024;
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LargeTableSize NUMBER := 1600 * 1024;
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-- Not Analyzed within 7 days
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CURSOR Cur_Stat IS
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SELECT Table_Name, Blocks
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FROM USER_TABLES
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WHERE DURATION IS NULL -- No temporary tables
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AND (LAST_ANALYZED IS NULL OR LAST_ANALYZED < SysDate-7);
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-- Fix Storage issues
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CURSOR Cur_Storage IS
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SELECT Table_Name
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FROM USER_TABLES
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WHERE DURATION IS NULL -- No temporary tables
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AND Pct_Increase > 0 OR Max_Extents < 4097 OR Next_Extent < SmallTableSize;
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--
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CURSOR CUR_BigTables IS
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SELECT TableName
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FROM AD_Table tt, User_Tables ut
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WHERE UPPER(tt.TableName)=ut.Table_Name
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AND Next_Extent < LargeTableSize
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AND (IsHighVolume='Y'
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OR EXISTS
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(SELECT * FROM AD_Tab t
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WHERE t.AD_Table_ID=tt.AD_Table_ID
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AND EXISTS
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(SELECT * FROM AD_Window w
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WHERE WindowType='T' AND w.AD_Window_ID=t.AD_Window_ID))
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OR (TableName LIKE 'C_Project%' OR TableName='AD_Attachment'))
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ORDER BY 1;
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--
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Cmd VARCHAR2(256);
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NoE NUMBER := 0;
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NoC NUMBER := 0;
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BEGIN
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FOR s IN Cur_Stat LOOP
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Cmd := 'ANALYZE TABLE ' || s.Table_Name;
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IF (s.Blocks < 100000) THEN -- Compute for smaller tables
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Cmd := Cmd || ' COMPUTE STATISTICS';
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NoC := NoC + 1;
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ELSE
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Cmd := Cmd || ' ESTIMATE STATISTICS';
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NoE := NoE + 1;
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END IF;
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EXECUTE IMMEDIATE Cmd;
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END LOOP;
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DBMS_OUTPUT.PUT_LINE('Statistics updated: ' || NoE || ' estimated, ' || NoC || ' computed');
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--
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FOR t IN Cur_Storage LOOP
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DBMS_OUTPUT.PUT_LINE('Table ' || t.Table_Name || ' storage fixed');
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Cmd := 'ALTER TABLE ' || t.Table_Name
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|| ' PCTFREE 10 PCTUSED 40 STORAGE (NEXT ' || SmallTableSize || ' PCTINCREASE 0 MAXEXTENTS UNLIMITED)';
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EXECUTE IMMEDIATE cmd;
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END LOOP;
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--
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FOR t IN Cur_BigTables LOOP
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DBMS_OUTPUT.PUT_LINE('Table ' || t.TableName || ' extent fixed');
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Cmd := 'ALTER TABLE ' || t.TableName
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|| ' PCTFREE 20 PCTUSED 40 STORAGE (NEXT ' || LargeTableSize || ' PCTINCREASE 0)';
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EXECUTE IMMEDIATE cmd;
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END LOOP;
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END;
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/
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