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关于使用SHOW_SPACE()

2024-07-21 02:39:02
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  只适用于非ASSM:
  
  create or replace
  PRocedure show_space
  ( p_segname in varchar2,
  p_owner in varchar2 default user,
  p_type in varchar2 default 'TABLE' )
  as
  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;
  procedure p( p_label in varchar2, p_num in number )
  is
  begin
  dbms_output.put_line( rpad(p_label,40,'.')
  p_num );
  end;
  begin
  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 );
  dbms_space.unused_space
  ( segment_owner => p_owner,
  segment_name => p_segname,
  segment_type => p_type,
  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( 'Free Blocks', l_free_blks );
  p( 'Total Blocks', l_total_blocks );
  p( 'Total Bytes', l_total_bytes );
  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;
  /
  例:
  SQL> create table donny(id char(1024));
  
  表已创建。
  
  SQL> set serveroutput on
  
  SQL> exec show_space('DONNY')
  Free Blocks.............................0
  Total Blocks............................5
  Total Bytes.............................40960
  Unused Blocks...........................4
  Unused Bytes............................32768
  Last Used Ext FileId....................8
  Last Used Ext BlockId...................27
  Last Used Block.........................1
  
  PL/SQL 过程已成功完成。
  
  SQL>

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