查看MSSQL数据库用户每个表占用的空间大小

查看MSSQL数据库用户每个表占用的空间大小

　最近做项目需要查看数据用户表的大小，包括记录条数和占用的磁盘空间数目。在网上找了很久其中查看MSSQL数据库每个表占用的空间大小相对还可以。

　　不过它的2、3中方法返回的数据比较多，有些是我们不关心的数据，我在AdventureWorks2012数据上做的测试。其中第二种方法代码如下：

View Code 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'@tbnamevarchar(255)', @tbname = @tablename FETCH NEXT FROM Info_cursor INTO @tablename END CLOSE Info_cursor DEALLOCATE Info_cursor GO --itlearner注：显示数据库信息 sp_spaceused @updateusage = 'TRUE' --itlearner注：显示表信息 select * from tablespaceinfo order by cast(left(ltrim(rtrim(reserved)) , len(ltrim(rtrim(reserved)))-2) as int) desc

　　运行效果如图：

　很显然这个返回结果是错误的。但是它提供了一种思路，修改后的SQL语句如下：

View Code IF NOT EXISTS ( SELECT  *                 FROM    sys.tables                 WHERE   name = 'tablespaceinfo' )      BEGIN         CREATE TABLE tablespaceinfo --创建结果存储表             (               Table_Name VARCHAR(50) ,               Rows_Count INT ,               reserved INT ,               datainfo INT ,               index_size INT ,               unused INT             )     END  DELETE  FROM tablespaceinfo  --清空数据表 CREATE TABLE #temp --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)     ) DECLARE @tablename VARCHAR(255)  --表名称 DECLARE @cmdsql NVARCHAR(500) DECLARE Info_cursor CURSOR FOR     SELECT  '[' + TABLE_SCHEMA + '].[' + TABLE_NAME + ']' AS Table_Name     FROM    [INFORMATION_SCHEMA].[TABLES]     WHERE   TABLE_TYPE = 'BASE TABLE'             AND TABLE_NAME <> 'tablespaceinfo' OPEN Info_cursor FETCH NEXT FROM Info_cursor INTO @tablename WHILE @@FETCH_STATUS = 0      BEGIN         SET @cmdsql = 'insert into #temp exec sp_spaceused ''' + @tablename             + ''''         EXECUTE sp_executesql @cmdsql         FETCH NEXT FROM Info_cursor INTO @tablename     END CLOSE Info_cursor DEALLOCATE Info_cursor GO --itlearner注：显示数据库信息 --sp_spaceused @updateusage = 'TRUE' --itlearner注：显示表信息 UPDATE  #temp SET     reserved = REPLACE(reserved, 'KB', '') ,         datainfo = REPLACE(datainfo, 'KB', '') ,         index_size = REPLACE(index_size, 'KB', '') ,         unused = REPLACE(unused, 'KB', '') INSERT  INTO dbo.tablespaceinfo         SELECT  nameinfo ,                 CAST(rowsinfo AS INT) ,                 CAST(reserved AS INT) ,                 CAST(datainfo AS INT) ,                 CAST(index_size AS INT) ,                 CAST(unused AS INT)         FROM    #temp DROP TABLE #temp SELECT  Table_Name ,         Rows_Count ,         CASE WHEN reserved > 1024              THEN CAST(reserved / 1024 AS VARCHAR(10)) + 'Mb'              ELSE CAST(reserved AS VARCHAR(10)) + 'KB'         END AS Data_And_Index_Reserved ,         CASE WHEN datainfo > 1024              THEN CAST(datainfo / 1024 AS VARCHAR(10)) + 'Mb'              ELSE CAST(datainfo AS VARCHAR(10)) + 'KB'         END AS Used ,         CASE WHEN Index_size > 1024              THEN CAST(index_size / 1024 AS VARCHAR(10)) + 'Mb'              ELSE CAST(index_size AS VARCHAR(10)) + 'KB'         END AS index_size ,         CASE WHEN unused > 1024 THEN CAST(unused / 1024 AS VARCHAR(10)) + 'Mb'              ELSE CAST(unused AS VARCHAR(10)) + 'KB'         END AS unused FROM    dbo.tablespaceinfo ORDER BY reserved DESC

　　运行结果如图：

　　同时他的第三种方法返回的数据太多，很多是我们不怎么关心的，原SQL语句如下：

View Code SELECT  OBJECT_NAME(id) tablename ,  * reserved / 1024 reserved ,         RTRIM(8 * dpages / 1024) + 'Mb' used ,  * ( reserved - dpages ) / 1024 unused ,  * dpages / 1024 - rows / 1024 * minlen / 1024 free ,         rows FROM    sysindexes WHERE   indid = 1 ORDER BY reserved DESC

　　运行结果如图：

　　这里面包含一些索引信息，其实我们只关心表占用磁盘信息，修改后的SQL语句如下：

View Code SELECT  OBJECT_NAME(id) tablename ,         CASE WHEN reserved * 8 > 1024 THEN RTRIM(8 * reserved / 1024) + 'MB'              ELSE RTRIM(reserved * 8) + 'KB'         END DataReserve ,         CASE WHEN dpages * 8 > 1024 THEN RTRIM(8 * dpages / 1024) + 'MB'              ELSE RTRIM(dpages * 8) + 'KB'         END Used ,         CASE WHEN 8 * ( reserved - dpages ) > 1024              THEN RTRIM(8 * ( reserved - dpages ) / 1024) + 'MB'              ELSE RTRIM(8 * ( reserved - dpages )) + 'KB'         END unused ,         CASE WHEN ( 8 * dpages / 1024 - rows / 1024 * minlen / 1024 ) > 1024              THEN RTRIM(( 8 * dpages / 1024 - rows / 1024 * minlen / 1024 )                         / 1024) + 'MB'              ELSE RTRIM(( 8 * dpages / 1024 - rows / 1024 * minlen / 1024 ))                   + 'KB'         END FREE ,         rows AS Rows_Count FROM    sys.sysindexes WHERE   indid = 1         AND status = 2066 -- status='18' ORDER BY reserved DESC

　　运行结果如下：

　　有不对的地方欢迎大家拍砖！

　　看了zjeagle的回复很好，于是把他的回复贴在下面：

exec sp_MSForEachTable @precommand=N' create table ##(id int identity,表名 sysname,字段数 int,记录数 int,保留空间 Nvarchar(10),使用空间 varchar(10),索引使用空间 varchar(10),未用空间 varchar(10))', @command1=N'insert ##(表名,记录数,保留空间,使用空间,索引使用空间,未用空间) exec sp_spaceused ''?'' update ## set 字段数=(select count(*) from syscolumns where id=object_id(''?'')) where id=scope_identity()', @postcommand=N' select * from ## order by convert(INT,replace(保留空间,"KB","")) desc drop table ##'