SQL中查看数据库各表的大小

SQL中查看数据库各表的大小

编写人：CC阿爸

2014-6-17

在日常SQL数据库的操作中，如何快速的查询数据库中各表中数据的大小。

以下有两种方法供参考：

第一种：

create table #t(name varchar(255), rows bigint, reserved varchar(20), data varchar(20), index_size varchar(20), unused varchar(20))

exec sp_MSforeachtable "insert into #t exec sp_spaceused ‘?‘"

select * from #t order by rows desc

select ‘select * from ‘+name  from #t order by rows desc

drop table #t

第二种：

CREATE PROCEDURE get_tableinfo AS

if not exists (select * from dbo.sysobjects where id = object_id(N‘[dbo].[tablespaceinfo]‘) and OBJECTPROPERTY(id, N‘IsUserTable‘) = 1)

create table  tablespaceinfo                         --创建结果存储表

              (nameinfo varchar(50) , 

               rowsinfo int , reserved varchar(20) , 

               datainfo varchar(20)  , 

               index_size varchar(20) , 

               unused varchar(20) )

delete from tablespaceinfo --清空数据表

 declare @tablename varchar(255)  --表名称

 declare @cmdsql varchar(500)

 DECLARE Info_cursor CURSOR FOR 

select o.name  

from dbo.sysobjects o where OBJECTPROPERTY(o.id, N‘IsTable‘) = 1 

     and o.name not like N‘#%%‘  order by o.name

OPEN Info_cursor

FETCH NEXT FROM Info_cursor 

INTO @tablename 

WHILE @@FETCH_STATUS = 0

BEGIN

  if exists (select * from dbo.sysobjects where id = object_id(@tablename) and OBJECTPROPERTY(id, N‘IsUserTable‘) = 1)

  execute sp_executesql 

         N‘insert into tablespaceinfo  exec sp_spaceused @tbname‘,

          N‘@tbname varchar(255)‘,

          @tbname = @tablename

  FETCH NEXT FROM Info_cursor 

  INTO @tablename 

END

CLOSE Info_cursor

DEALLOCATE Info_cursor

GO

----执行存储过程

--exec get_tableinfo

--

--查询运行该存储过程后得到的结果

select * from tablespaceinfo 

order by cast(left(ltrim(rtrim(reserved)) , len(ltrim(rtrim(reserved)))-2) as int) desc