【ORACLE】ORACLE存储过程SHOW_SPACE.SQL完整脚本

工具SHOW_SPACE对于Oracle来讲其实就是个存储过程，这个存储过程可以用来分析和输出数据库段的空间利用率信息，留存备用。

-- ------------------------------------------------------------------------------------- Author : Tom Kyte-- Description : Displays free and unused space for the specified object.-- Call Syntax : EXEC Show_Space('Tablename');-- Requirements : SET SERVEROUTPUT ON -- Last Modified: June 22, 2010-- This enhance version has all the fixes for ASSM, LMT, partitions etc (Oracle version 10gr2 +)-- -----------------------------------------------------------------------------------set define offcreate or replace procedure show_space( p_segname in varchar2, p_owner in varchar2 default user, p_type in varchar2 default 'TABLE', p_partition in varchar2 default NULL )-- this procedure uses authid current user so it can query DBA_*-- views using privileges from a ROLE and so it can be installed-- once per database, instead of once per user that wanted to use itauthid current_useras    l_free_blks number;    l_total_blocks number;    l_total_bytes number;    l_unused_blocks number;    l_unused_bytes number;    l_LastUsedExtFileId number;    l_LastUsedExtBlockId number;    l_LAST_USED_BLOCK number;    l_segment_space_mgmt varchar2(255);    l_unformatted_blocks number;    l_unformatted_bytes number;    l_fs1_blocks number; l_fs1_bytes number;    l_fs2_blocks number; l_fs2_bytes number;    l_fs3_blocks number; l_fs3_bytes number;    l_fs4_blocks number; l_fs4_bytes number;    l_full_blocks number; l_full_bytes number;    -- inline procedure to print out numbers nicely formatted    -- with a simple label    procedure p( p_label in varchar2, p_num in number )    is    begin       dbms_output.put_line( rpad(p_label,40,'.') ||                             to_char(p_num,'999,999,999,999') );    end;begin  -- this query is executed dynamically in order to allow this procedure  -- to be created by a user who has access to DBA_SEGMENTS/TABLESPACES  -- via a role as is customary.  -- NOTE: at runtime, the invoker MUST have access to these two  -- views!  -- this query determines if the object is a ASSM object or not  begin     execute immediate         'select ts.segment_space_management            from dba_segments seg, dba_tablespaces ts           where seg.segment_name = :p_segname             and (:p_partition is null or                 seg.partition_name = :p_partition)             and seg.owner = :p_owner             and seg.segment_type = :p_type             and seg.tablespace_name = ts.tablespace_name'            into l_segment_space_mgmt           using p_segname, p_partition, p_partition, p_owner, p_type;  exception      when too_many_rows then         dbms_output.put_line         ( 'This must be a partitioned table, use p_partition => ');         return;  end;  -- if the object is in an ASSM tablespace, we must use this API  -- call to get space information, else we use the FREE_BLOCKS  -- API for the user managed segments  if l_segment_space_mgmt = 'AUTO'  then    dbms_space.space_usage    ( p_owner, p_segname, p_type, l_unformatted_blocks,      l_unformatted_bytes, l_fs1_blocks, l_fs1_bytes,      l_fs2_blocks, l_fs2_bytes, l_fs3_blocks, l_fs3_bytes,      l_fs4_blocks, l_fs4_bytes, l_full_blocks, l_full_bytes, p_partition);    p( 'Unformatted Blocks ', l_unformatted_blocks );    p( 'FS1 Blocks (0-25) ', l_fs1_blocks );    p( 'FS2 Blocks (25-50) ', l_fs2_blocks );    p( 'FS3 Blocks (50-75) ', l_fs3_blocks );    p( 'FS4 Blocks (75-100)', l_fs4_blocks );    p( 'Full Blocks ', l_full_blocks ); else    dbms_space.free_blocks(      segment_owner => p_owner,      segment_name => p_segname,      segment_type => p_type,      freelist_group_id => 0,      free_blks => l_free_blks);    p( 'Free Blocks', l_free_blks ); end if; -- and then the unused space API call to get the rest of the -- information dbms_space.unused_space ( segment_owner => p_owner,    segment_name => p_segname,    segment_type => p_type,    partition_name => p_partition,    total_blocks => l_total_blocks,    total_bytes => l_total_bytes,    unused_blocks => l_unused_blocks,    unused_bytes => l_unused_bytes,    LAST_USED_EXTENT_FILE_ID => l_LastUsedExtFileId,    LAST_USED_EXTENT_BLOCK_ID => l_LastUsedExtBlockId,    LAST_USED_BLOCK => l_LAST_USED_BLOCK );    p( 'Total Blocks', l_total_blocks );    p( 'Total Bytes', l_total_bytes );    p( 'Total MBytes', trunc(l_total_bytes/1024/1024) );    p( 'Unused Blocks', l_unused_blocks );    p( 'Unused Bytes', l_unused_bytes );    p( 'Last Used Ext FileId', l_LastUsedExtFileId );    p( 'Last Used Ext BlockId', l_LastUsedExtBlockId );    p( 'Last Used Block', l_LAST_USED_BLOCK );end;/set define on