109 lines
3.3 KiB
MySQL
109 lines
3.3 KiB
MySQL
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-- +----------------------------------------------------------------------------+
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-- | Jeffrey M. Hunter |
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-- | jhunter@idevelopment.info |
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-- | www.idevelopment.info |
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-- |----------------------------------------------------------------------------|
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-- | Copyright (c) 1998-2012 Jeffrey M. Hunter. All rights reserved. |
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-- |----------------------------------------------------------------------------|
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-- | DATABASE : Oracle |
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-- | FILE : dba_free_space_frag.sql |
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-- | CLASS : Database Administration |
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-- | PURPOSE : Report free space fragmentation. |
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-- | !!! THIS SCRIPT MUST BE RUN AS THE SYS USER !!! |
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-- | NOTE : As with any code, ensure to test this script in a development |
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-- | environment before attempting to run it in production. |
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-- +----------------------------------------------------------------------------+
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CONNECT / AS SYSDBA
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SET TERMOUT OFF;
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COLUMN current_instance NEW_VALUE current_instance NOPRINT;
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SELECT rpad(instance_name, 17) current_instance FROM v$instance;
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SET TERMOUT ON;
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PROMPT
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PROMPT +------------------------------------------------------------------------+
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PROMPT | Report : Free Space Fragmentation Report |
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PROMPT | Instance : ¤t_instance |
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PROMPT +------------------------------------------------------------------------+
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CREATE OR REPLACE VIEW free_space (
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tablespace
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, pieces
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, free_bytes
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, free_blocks
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, largest_bytes
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, largest_blks
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, fsfi
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, data_file
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, file_id
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, total_blocks
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)
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AS
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SELECT
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a.tablespace_name
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, COUNT(*)
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, SUM(a.bytes)
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, SUM(a.blocks)
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, MAX(a.bytes)
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, MAX(a.blocks)
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, SQRT(MAX(a.blocks)/SUM(a.blocks))*(100/SQRT(SQRT(count(a.blocks))))
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, UPPER(b.file_name)
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, MAX(a.file_id)
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, MAX(b.blocks)
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FROM
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sys.dba_free_space a
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, sys.dba_data_files b
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WHERE
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a.file_id = b.file_id
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GROUP BY
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a.tablespace_name, b.file_name
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/
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CLEAR COLUMNS
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SET ECHO OFF
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SET FEEDBACK OFF
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SET HEADING ON
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SET LINESIZE 180
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SET PAGESIZE 50000
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SET TERMOUT ON
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SET TIMING OFF
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SET TRIMOUT ON
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SET TRIMSPOOL ON
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SET VERIFY OFF
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BREAK ON tablespace SKIP 2 ON REPORT
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COMPUTE SUM OF total_blocks ON tablespace
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COMPUTE SUM OF free_blocks ON tablespace
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COMPUTE SUM OF free_blocks ON report
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COMPUTE SUM OF total_blocks ON report
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COLUMN tablespace HEADING "Tablespace" FORMAT a30
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COLUMN file_id HEADING File# FORMAT 99999
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COLUMN pieces HEADING Frag FORMAT 9999
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COLUMN free_bytes HEADING 'Free Byte'
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COLUMN free_blocks HEADING 'Free Blk' FORMAT 999,999,999
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COLUMN largest_bytes HEADING 'Biggest Bytes'
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COLUMN largest_blks HEADING 'Biggest Blks' FORMAT 999,999,999
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COLUMN data_file HEADING 'File Name' FORMAT a75
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COLUMN total_blocks HEADING 'Total Blocks' FORMAT 999,999,999
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SELECT
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tablespace
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, data_file
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, pieces
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, free_blocks
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, largest_blks
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, file_id
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, total_blocks
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FROM
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free_space
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/
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DROP VIEW free_space
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/
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