查看並分析數據表所佔的空間

--1.新增TEMP TABLE
create   table   #temptable   
([name] varchar(50),[rows] bigint,resverved varchar(50),data varchar(50),index_size varchar(50),unused varchar(50))  

--2.執行查詢結果
select 'insert into #temptable exec sp_spaceused '''+name+'''' 
from sysobjects where objectproperty(id,'IsUserTable')=1

--3. 方便查看
update #temptable 
set resverved=left(resverved,charindex(' ',resverved)-1),
data=left(data,charindex(' ',data)-1),
index_size=left(index_size,charindex(' ',index_size)-1),
unused=left(unused,charindex(' ',unused)-1)

--4.查詢結果
select * from #temptable  
order by cast(resverved as bigint) desc,cast(data as bigint) desc
---5. 爲了方便比較，彙總
select convert(char(5),sum(cast(data as bigint))/1024/1024)+'GB' 
from #temptable


select convert(char(5),sum(cast(unused as bigint))/1024)+'MB' 
from #temptable

select convert(char(5),sum(cast(resverved as bigint))/1024)+'MB' 
from #temptable

---有了上面的結果，對每一個表進行容量回收，清楚垃圾數據，還能夠考慮分離數據庫。


--drop table #temptable