--方法1

exec sp_MSforeachtable @command1="EXEC sp_spaceused '?'";

会返回多个结果集，可能不是所希望的结果。进一步处理，参考方法2 

--方法2

create table #tblResults(

[name] nvarchar(50), --注意有表名会长于50

[rows] int,

[reserved] varchar(18),

[reserved_int] int default(0),

[data] varchar(18),

[data_int] int default(0),

[index_size] varchar(18),

[index_size_int] int default(0),

[unused] varchar(18),

[unused_int] int default(0)

)

exec sp_MSforeachtable @command1 = 

"insert into #tblResults([name],[rows],[reserved],[data],[index_size],[unused])

exec sp_spaceused '?' "

update #tblResults set

 [reserved_int] =CAST(substring([reserved],1,CHARINDEX(' ',[reserved])) as int),

 [data_int] =CAST(substring([data],1,CHARINDEX(' ',[data])) as int),

 [index_size_int] =CAST(substring([index_size],1,CHARINDEX(' ',[index_size])) as int),

 [unused_int] =CAST(substring([unused],1,CHARINDEX(' ',[unused])) as int)

 select * from #tblResults

 注：原文链接地址http://www.4guysfromrolla.com/webtech/032906-1.shtml