查询指定数据库占用数据库空间前20名的表按顺序排列出来
use DBName
go
SELECT top 20 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
方法二:也可以使用存储过程查看(稍微慢点)
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 top 20 * from ## order by convert(INT,replace(保留空间,"KB","")) desc drop table ##'