快速查询哪个表的数据过大

declare @name varchar(1000)
declare @sql varchar(1000)

if object_id('tempdb..#space') is not null drop table #space
create table #space(name varchar(50),rows bigint,reserved varchar(12),data varchar(12),index_size varchar(12),unused varchar(12))

declare sp cursor local for select '['+name+']' from sysobjects where type = 'u'
open sp
fetch sp into @name
while @@fetch_status = 0
begin
 set @sql = 'insert into #space exec sp_spaceused ' + @name
 exec(@sql)
 fetch sp into @name
end
close sp

select * from #space order by cast(replace(reserved,'kb','')as int) desc