show_space

从asktom网站中拷贝过来的

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;