查看Sql Server所有表占用的空间大小

2010-01-26

sp_spaceused可以查看某个表占用的空间，但不能一次查看所有的表。今天研究了一下这个sp，写了下面这个查询：

--刷新系统数据
dbcc updateusage(0) with no_infomsgs

--每页8k
select name = name,id,
rows = convert(char(11), rows),
reserved = ltrim(str(reservedpages * 8.,15,0) + ' KB'),
data = ltrim(str(pages * 8.,15,0) + ' KB'),
index_size = ltrim(str((usedpages - pages) * 8.,15,0) + ' KB'),
unused = ltrim(str((reservedpages - usedpages) * 8.,15,0) + ' KB')
FROM
(select name,id,
reservedpages = sum(a.total_pages),
usedpages = sum(a.used_pages),
pages = sum(
    CASE
     When a.type <> 1 Then a.used_pages
     When p.index_id < 2 Then a.data_pages
     Else 0
    END
   ),
rows = sum(
    CASE
     When (p.index_id < 2) and (a.type = 1) Then p.rows
     Else 0
    END
   )
from sys.partitions p, sys.allocation_units a,sysobjects o
where p.partition_id = a.container_id and p.object_id = o.id
group by name,id
) a
order by reservedpages desc