关于查看MSSQL 数据库用户每个表占用的空间大小(云数据库RDS

本篇文章是对查看MSSQL数据库用户每个表占用的空间大小进行了详细的分析介绍，需要的朋友参考下

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：

复制代码代码如下:

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’@tbname varchar(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：

复制代码代码如下:

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，香港服务器，原SQL语句如下：

复制代码代码如下:

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：