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show_space

原创 IT综合 作者:zhyuh 时间:2004-11-09 19:23:47 0 删除 编辑
show_space存储过程,显示block级别存储信息挺管用的,保存起来[@more@]

create or replace procedure show_space
( p_segname_1 in varchar2,
p_space in varchar2 default 'MANUAL',
p_type_1 in varchar2 default 'TABLE' ,
p_analyzed in varchar2 default 'N',
p_owner_1 in varchar2 default user)
as
p_segname varchar2(100);
p_type varchar2(10);
p_owner 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_segname := upper(p_segname_1); -- rainy changed
p_owner := upper(p_owner_1);
p_type := p_type_1;

if (p_type_1 = 'i' or p_type_1 = 'I') then --rainy changed
p_type := 'INDEX';
end if;

if (p_type_1 = 't' or p_type_1 = 'T') then --rainy changed
p_type := 'TABLE';
end if;

if (p_type_1 = 'c' or p_type_1 = 'C') then --rainy changed
p_type := 'CLUSTER';
end if;


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 );

if p_space = 'MANUAL' or (p_space <> 'auto' and p_space <> 'AUTO') then
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;

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 );


/*IF the segment is analyzed */
if p_analyzed = 'Y' then
dbms_space.space_usage(segment_owner => p_owner ,
segment_name => p_segname ,
segment_type => p_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);
dbms_output.put_line(rpad(' ',50,'*'));
dbms_output.put_line('The segment is analyzed');
p( '0% -- 25% free space blocks', l_fs1_blocks);
p( '0% -- 25% free space bytes', l_fs1_bytes);
p( '25% -- 50% free space blocks', l_fs2_blocks);
p( '25% -- 50% free space bytes', l_fs2_bytes);
p( '50% -- 75% free space blocks', l_fs3_blocks);
p( '50% -- 75% free space bytes', l_fs3_bytes);
p( '75% -- 100% free space blocks', l_fs4_blocks);
p( '75% -- 100% free space bytes', l_fs4_bytes);
p( 'Unused Blocks', l_unformatted_blocks );
p( 'Unused Bytes', l_unformatted_bytes );
p( 'Total Blocks', l_full_blocks);
p( 'Total bytes', l_full_bytes);

end if;

end;

SQL> create table t(col1 number(10));

Table created

 

SQL> insert into t values (1);

1 row inserted

 

SQL> commit;

Commit complete

 

 

SQL> analyze table t compute statistics;

Table analyzed

 

SQL> set serveroutput on

SQL> exec show_space('t','auto');

Total Blocks............................8

Total Bytes.............................65536

Unused Blocks...........................0

Unused Bytes............................0

Last Used Ext FileId....................4

Last Used Ext BlockId...................80

Last Used Block.........................8

Free Blocks......  Number of blocks on the freelist
Total Blocks.....  Total blocks allocated to the table
Total Bytes......  Total bytes allocated to the table
Unused Blocks....  Blocks that have never contained data
Unused Bytes.....  The above in bytes

来自 “ ITPUB博客 ” ,链接:http://blog.itpub.net/207/viewspace-780229/,如需转载,请注明出处,否则将追究法律责任。

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