使用如下sql script可以获得每个数据库表所占用的空间大小,单位是KB
create table #Data(name varchar(100),row varchar(100),reserved varchar(100),data varchar(100),index_size varchar(100),unused varchar(100)) 
declare @name varchar(100) 
declare cur cursor for 
 select name from sysobjects where xtype='u' order by name 
open cur 
fetch next from cur into @name 
while @@fetch_status=0 
begin 
 insert into #data 
 exec sp_spaceused @name 
 print @name 
 fetch next from cur into @name 
end 
close cur 
deallocate cur 
create table #DataNew(name varchar(100),row int,reserved int,data int,index_size int,unused int) 
insert into #dataNew 
select name,convert(int,row) as [row],convert(int,replace(reserved,'KB',''))as reserved,convert(int,replace(data,'KB','')) as [data], 
convert(int,replace(index_size,'KB','')) as [index_size],convert(int,replace(unused,'KB','')) as [unused] from #data 
select * from #dataNew order by data desc 
drop table #Data
drop table #dataNew