show_space 脚本

create or replace procedure show_space(v_segment_name   in varchar2,  
                                       v_segment_owner  in varchar2 default user,  
                                       v_segment_type   in varchar2 default 'TABLE',  
                                       p_analyzed       in varchar2 default 'Y',  
                                       p_partition_name in varchar2 default null) as  
  p_segment_name  varchar2(30);  
  p_segment_owner varchar2(30);  
  p_segment_type  varchar2(30);  
  p_space         varchar2(30);  
  
  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;  
  
  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  
  p_segment_name  := upper(v_segment_name);  
  p_segment_owner := upper(v_segment_owner);  
  p_segment_type  := upper(v_segment_type);  
  
  if (p_segment_type = 'I' or p_segment_type = 'INDEX') then  
    p_segment_type := 'INDEX';  
  elsif (p_segment_type = 'T' or p_segment_type = 'TABLE') then  
    p_segment_type := 'TABLE';  
  elsif (p_segment_type = 'C' or p_segment_type = 'CLUSTER') then  
    p_segment_type := 'CLUSTER';  
  end if;  
  
  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.tablespace_name = ts.tablespace_name'  
    into p_space  
    using p_segment_name, p_partition_name, p_partition_name, p_segment_owner;  
  
  dbms_space.unused_space(segment_owner             => p_segment_owner,  
                          segment_name              => p_segment_name,  
                          segment_type              => p_segment_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,  
                          partition_name            => p_partition_name);  
  p('Total Blocks  ', l_total_blocks);  
  p('Total Bytes   ', l_total_bytes);  
  p('Total MBytes  ', l_total_bytes / 1024 / 1024);  
  p('Unused Blocks ', l_unused_blocks);  
  p('Unused Bytes  ', l_unused_bytes);  
  p('Unused KBytes ', l_unused_bytes / 1024);  
  p('Used Blocks   ', l_total_blocks - l_unused_blocks);  
  p('Used Bytes    ', l_total_bytes - l_unused_bytes);  
  p('Used KBytes   ', (l_total_bytes - l_unused_bytes) / 1024);  
  p('Last Used Ext FileId', l_lastusedextfileid);  
  p('Last Used Ext BlockId', l_lastusedextblockid);  
  p('Last Used Block', l_last_used_block);  
  
  if p_analyzed = 'Y' then  
    if p_space = 'AUTO' then  
      dbms_space.space_usage(segment_owner      => p_segment_owner,  
                             segment_name       => p_segment_name,  
                             segment_type       => p_segment_type,  
                             unformatted_blocks => l_unformatted_blocks,  
                             unformatted_bytes  => l_unformatted_bytes,  
                             fs1_blocks         => l_fs1_blocks,  
                             fs1_bytes          => l_fs1_bytes,  
                             fs2_blocks         => l_fs2_blocks,  
                             fs2_bytes          => l_fs2_bytes,  
                             fs3_blocks         => l_fs3_blocks,  
                             fs3_bytes          => l_fs3_bytes,  
                             fs4_blocks         => l_fs4_blocks,  
                             fs4_bytes          => l_fs4_bytes,  
                             full_blocks        => l_full_blocks,  
                             full_bytes         => l_full_bytes,  
                             partition_name     => p_partition_name);  
      
      dbms_output.put_line('');  
      dbms_output.put_line('The segment is analyzed below');  
      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('Unformatted Blocks  ', l_unformatted_blocks);  
      p('Full Blocks         ', l_full_blocks);  
    else  
      dbms_space.free_blocks(segment_owner     => p_segment_owner,  
                             segment_name      => p_segment_name,  
                             segment_type      => p_segment_type,  
                             freelist_group_id => 0,  
                             free_blks         => l_free_blks);  
      p('Free Blocks', l_free_blks);  
    end if;  
  end if;  
end;