SELECT d.tablespace_name "Name", d.status "Status",
TO_CHAR (NVL (a.BYTES / 1024 / 1024, 0), '99,999,990.90') "Size (M)",
TO_CHAR (NVL (a.BYTES - NVL (f.BYTES, 0), 0) / 1024 / 1024,
'99999999.99'
) USE,
TO_CHAR (NVL ((a.BYTES - NVL (f.BYTES, 0)) / a.BYTES * 100, 0),
'990.00'
) "Used %"
FROM SYS.dba_tablespaces d,
(SELECT tablespace_name, SUM (BYTES) BYTES
FROM dba_data_files
GROUP BY tablespace_name) a,
(SELECT tablespace_name, SUM (BYTES) BYTES
FROM dba_free_space
GROUP BY tablespace_name) f
WHERE d.tablespace_name = a.tablespace_name(+)
AND d.tablespace_name = f.tablespace_name(+)
AND NOT (d.extent_management LIKE 'LOCAL' AND d.CONTENTS LIKE 'TEMPORARY')
UNION ALL
SELECT d.tablespace_name "Name", d.status "Status",
TO_CHAR (NVL (a.BYTES / 1024 / 1024, 0), '99,999,990.90') "Size (M)",
TO_CHAR (NVL (t.BYTES, 0) / 1024 / 1024, '99999999.99') USE,
TO_CHAR (NVL (t.BYTES / a.BYTES * 100, 0), '990.00') "Used %"
FROM SYS.dba_tablespaces d,
(SELECT tablespace_name, SUM (BYTES) BYTES
FROM dba_temp_files
GROUP BY tablespace_name) a,
(SELECT tablespace_name, SUM (bytes_cached) BYTES
FROM v$temp_extent_pool
GROUP BY tablespace_name) t
WHERE d.tablespace_name = a.tablespace_name(+)
AND d.tablespace_name = t.tablespace_name(+)
AND d.extent_management LIKE 'LOCAL'
AND d.CONTENTS LIKE 'TEMPORARY';
select
b.file_id 物理文件号,
b.file_name 物理文件名,
b.tablespace_name 表空间,
b.bytes/1024/1024 大小M,
(b.bytes-sum(nvl(a.bytes,0)))/1024/1024 已使用M,
substr((b.bytes-sum(nvl(a.bytes,0)))/(b.bytes)*100,1,5) 利用率
from dba_free_space a,dba_data_files b
where a.file_id=b.file_id
group by b.tablespace_name,b.file_id,b.file_name,b.bytes
order by b.tablespace_name
select 'alter database datafile '''||a.file_name||''' resize ' ||round(a.filesize - (a.filesize - c.hwmsize-100) *0.8)||'M;',
a.filesize,c.hwmsize
from ( select file_id,file_name,round(bytes/1024/1024) filesize from dba_data_files ) a,
( select file_id,round(max(block_id)*8/1024) HWMsize from dba_extents group by file_id) c
where a.file_id = c.file_id and a.filesize - c.hwmsize > 100
- 物理文件大小与可释放的空间（包含resize语句）
select a.file#,
a.name,
a.bytes / 1024 /1024 CurrentMB,
trunc(ceil(HWM * a.block_size) / 1024 / 1024 +1) ResizeTo,
trunc((a.bytes - HWM * a.block_size) / 1024 / 1024 + 1) ReleaseMB,
'alter database datafile ''' || a.name || ''' resize ' ||
trunc(ceil(HWM * a.block_size) / 1024 / 1024 +1) || 'M;' ResizeCmd
from v$datafile a,
(select file_id, max(block_id + blocks -1) HWM
FROM dba_extents
group by file_id) b
where a.file# = b.file_id(+) and (a.bytes - HWM* a.block_size) > 0
SELECT d.tablespace_name "Name", d.status "Status",
TO_CHAR (NVL (a.BYTES / 1024 / 1024, 0), '99,999,990.90') "Size (M)",
TO_CHAR (NVL (a.BYTES - NVL (f.BYTES, 0), 0) / 1024 / 1024,
'99999999.99'
) USE,
TO_CHAR (NVL ((a.BYTES - NVL (f.BYTES, 0)) / a.BYTES * 100, 0),
'990.00'
) "Used %"
FROM SYS.dba_tablespaces d,
(SELECT tablespace_name, SUM (BYTES) BYTES
FROM dba_data_files
GROUP BY tablespace_name) a,
(SELECT tablespace_name, SUM (BYTES) BYTES
FROM dba_free_space
GROUP BY tablespace_name) f
WHERE d.tablespace_name = a.tablespace_name(+)
AND d.tablespace_name = f.tablespace_name(+)
AND NOT (d.extent_management LIKE 'LOCAL' AND d.CONTENTS LIKE 'TEMPORARY')
UNION ALL
SELECT d.tablespace_name "Name", d.status "Status",
TO_CHAR (NVL (a.BYTES / 1024 / 1024, 0), '99,999,990.90') "Size (M)",
TO_CHAR (NVL (t.BYTES, 0) / 1024 / 1024, '99999999.99') USE,
TO_CHAR (NVL (t.BYTES / a.BYTES * 100, 0), '990.00') "Used %"
FROM SYS.dba_tablespaces d,
(SELECT tablespace_name, SUM (BYTES) BYTES
FROM dba_temp_files
GROUP BY tablespace_name) a,
(SELECT tablespace_name, SUM (bytes_cached) BYTES
FROM v$temp_extent_pool
GROUP BY tablespace_name) t
WHERE d.tablespace_name = a.tablespace_name(+)
AND d.tablespace_name = t.tablespace_name(+)
AND d.extent_management LIKE 'LOCAL'
AND d.CONTENTS LIKE 'TEMPORARY';
select OWNER "用户名", t.segment_name "表名", t.segment_type "表类型", sum(t.bytes / 1024 / 1024) "表大小M"
from dba_segments t
where t.owner = 'HEVF'
and t.segment_type='TABLE'
group by OWNER, t.segment_name, t.segment_type
order by "表大小M" desc;
select
'alter database datafile ''' || a.file_name || ''' resize '
||
round(a.filesize - (a.filesize - c.hwmsize - 100) * 0.8) ||
'M;',
a.filesize || 'M' as "数据文件的总大小",
c.hwmsize || 'M' as
"数据文件的实用大小"
from (select file_id, file_name, round(bytes / 1024 / 1024) as
filesize
from dba_data_files) a,
(select file_id, round(max(block_id) * 8
/ 1024) as HWMsize
from dba_extents
group by file_id) c
where a.file_id
= c.file_id
and a.filesize - c.hwmsize > 100;
-- 收缩表空间
select a.tablespace_name,
a.file_name,
a.totalsize as totalsize_MB,
b.freesize as freesize_MB,
'ALTER DATABASE DATAFILE ''' || a.file_name || ''' RESIZE ' ||
round((a.totalsize - b.freesize) + 500) || 'M;' as "alter datafile"
from (select a.file_name,
a.file_id,
a.tablespace_name,
a.bytes / 1024 / 1024 as totalsize
from dba_data_files a) a,
(select b.tablespace_name,
b.file_id,
sum(b.bytes / 1024 / 1024) as freesize
from dba_free_space b
group by b.tablespace_name, b.file_id) b
where a.file_id = b.file_id
and b.freesize > 100
and a.tablespace_name in ('APPS_TS_TX_DATA')
order by a.tablespace_name
select tablespace_name,sqrt(max(blocks)/sum(blocks))*
(100/sqrt(sqrt(count(blocks)))) fsfi
from dba_free_space
group by tablespace_name order by 1;
