我继承了一个相当大的SQL Server数据库。给定包含的数据,它似乎比我期望的要占用更多的空间。
有没有一种简单的方法来确定每个表占用多少磁盘空间?
我继承了一个相当大的SQL Server数据库。给定包含的数据,它似乎比我期望的要占用更多的空间。
有没有一种简单的方法来确定每个表占用多少磁盘空间?
Answers:
SELECT
t.NAME AS TableName,
s.Name AS SchemaName,
p.rows,
SUM(a.total_pages) * 8 AS TotalSpaceKB,
CAST(ROUND(((SUM(a.total_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS TotalSpaceMB,
SUM(a.used_pages) * 8 AS UsedSpaceKB,
CAST(ROUND(((SUM(a.used_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS UsedSpaceMB,
(SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB,
CAST(ROUND(((SUM(a.total_pages) - SUM(a.used_pages)) * 8) / 1024.00, 2) AS NUMERIC(36, 2)) AS UnusedSpaceMB
FROM
sys.tables t
INNER JOIN
sys.indexes i ON t.OBJECT_ID = i.object_id
INNER JOIN
sys.partitions p ON i.object_id = p.OBJECT_ID AND i.index_id = p.index_id
INNER JOIN
sys.allocation_units a ON p.partition_id = a.container_id
LEFT OUTER JOIN
sys.schemas s ON t.schema_id = s.schema_id
WHERE
t.NAME NOT LIKE 'dt%'
AND t.is_ms_shipped = 0
AND i.OBJECT_ID > 255
GROUP BY
t.Name, s.Name, p.Rows
ORDER BY
TotalSpaceMB DESC, t.Name
如果您使用的是SQL Server Management Studio(SSMS),则可以运行标准报告,而不是运行查询(在我的情况下返回重复的行)。
注意:数据库兼容性级别必须设置为90或更高,才能正常工作。请参阅http://msdn.microsoft.com/en-gb/library/bb510680.aspx
sp_spaceused可以为您提供有关表,索引视图或整个数据库使用的磁盘空间的信息。
例如:
USE MyDatabase; GO
EXEC sp_spaceused N'User.ContactInfo'; GO
这将报告ContactInfo表的磁盘使用情况信息。
要一次将其用于所有表:
USE MyDatabase; GO
sp_msforeachtable 'EXEC sp_spaceused [?]' GO
您还可以从SQL Server的“标准报表”功能的右键单击中获取磁盘使用情况。要获取此报告,请从“对象资源管理器”中的服务器对象导航,向下移至“数据库”对象,然后右键单击任何数据库。从出现的菜单中,选择“报告”,然后选择“标准报告”,然后选择“按分区划分的磁盘使用情况:[数据库名称]”。
sp_msforeachtable
在SSMS中轻松使用可能会触发System.OutOfMemoryException
,因此使用临时表存储结果可能是一个更好的主意。
这是另一种方法:使用SQL Server Management Studio,在“ 对象资源管理器”中,转到数据库并选择“ 表”
然后打开“ 对象资源管理器详细信息”(通过按F7或转到“ 视图”->“对象资源管理器详细信息”)。在对象资源管理器详细信息页面中,右键单击列标题,然后启用要在页面中看到的列。您也可以按任何列对数据进行排序。
经过一番搜索,我找不到一种简单的方法来获取所有表的信息。有一个名为sp_spaceused的方便的存储过程,该过程将返回数据库使用的所有空间。如果提供了表名,则返回该表使用的空间。但是,由于列是字符值,所以存储过程返回的结果不可排序。
以下脚本将生成我正在寻找的信息。
create table #TableSize (
Name varchar(255),
[rows] int,
reserved varchar(255),
data varchar(255),
index_size varchar(255),
unused varchar(255))
create table #ConvertedSizes (
Name varchar(255),
[rows] int,
reservedKb int,
dataKb int,
reservedIndexSize int,
reservedUnused int)
EXEC sp_MSforeachtable @command1="insert into #TableSize
EXEC sp_spaceused '?'"
insert into #ConvertedSizes (Name, [rows], reservedKb, dataKb, reservedIndexSize, reservedUnused)
select name, [rows],
SUBSTRING(reserved, 0, LEN(reserved)-2),
SUBSTRING(data, 0, LEN(data)-2),
SUBSTRING(index_size, 0, LEN(index_size)-2),
SUBSTRING(unused, 0, LEN(unused)-2)
from #TableSize
select * from #ConvertedSizes
order by reservedKb desc
drop table #TableSize
drop table #ConvertedSizes
以上查询非常适合查找表使用的空间量(包括索引),但是如果要比较表上索引使用的空间量,请使用以下查询:
SELECT
OBJECT_NAME(i.OBJECT_ID) AS TableName,
i.name AS IndexName,
i.index_id AS IndexID,
8 * SUM(a.used_pages) AS 'Indexsize(KB)'
FROM
sys.indexes AS i
JOIN sys.partitions AS p ON p.OBJECT_ID = i.OBJECT_ID AND p.index_id = i.index_id
JOIN sys.allocation_units AS a ON a.container_id = p.partition_id
WHERE
i.is_primary_key = 0 -- fix for size discrepancy
GROUP BY
i.OBJECT_ID,
i.index_id,
i.name
ORDER BY
OBJECT_NAME(i.OBJECT_ID),
i.index_id
where [i].[is_primary_key] = 0
。现在大小应该匹配。
sp_spaceused
。我测量GB,所以不匹配的兆字节不多。我不在乎确切的大小,只是一个想法。
如果需要计算SSMS中“表属性-存储”页面上完全相同的数字,则需要使用与SSMS中相同的方法对它们进行计数(适用于sql server 2005及更高版本...以及对于具有LOB字段的表可以正常工作-因为仅计算“ used_pages”不足以显示准确的索引大小):
;with cte as (
SELECT
t.name as TableName,
SUM (s.used_page_count) as used_pages_count,
SUM (CASE
WHEN (i.index_id < 2) THEN (in_row_data_page_count + lob_used_page_count + row_overflow_used_page_count)
ELSE lob_used_page_count + row_overflow_used_page_count
END) as pages
FROM sys.dm_db_partition_stats AS s
JOIN sys.tables AS t ON s.object_id = t.object_id
JOIN sys.indexes AS i ON i.[object_id] = t.[object_id] AND s.index_id = i.index_id
GROUP BY t.name
)
select
cte.TableName,
cast((cte.pages * 8.)/1024 as decimal(10,3)) as TableSizeInMB,
cast(((CASE WHEN cte.used_pages_count > cte.pages
THEN cte.used_pages_count - cte.pages
ELSE 0
END) * 8./1024) as decimal(10,3)) as IndexSizeInMB
from cte
order by 2 desc
@xav 答案的扩展名,用于处理表分区以获取MB和GB的大小。在SQL Server 2008/2012上进行了测试(在中注释了一行is_memory_optimized = 1
)
SELECT
a2.name AS TableName,
a1.rows as [RowCount],
--(a1.reserved + ISNULL(a4.reserved,0)) * 8 AS ReservedSize_KB,
--a1.data * 8 AS DataSize_KB,
--(CASE WHEN (a1.used + ISNULL(a4.used,0)) > a1.data THEN (a1.used + ISNULL(a4.used,0)) - a1.data ELSE 0 END) * 8 AS IndexSize_KB,
--(CASE WHEN (a1.reserved + ISNULL(a4.reserved,0)) > a1.used THEN (a1.reserved + ISNULL(a4.reserved,0)) - a1.used ELSE 0 END) * 8 AS UnusedSize_KB,
CAST(ROUND(((a1.reserved + ISNULL(a4.reserved,0)) * 8) / 1024.00, 2) AS NUMERIC(36, 2)) AS ReservedSize_MB,
CAST(ROUND(a1.data * 8 / 1024.00, 2) AS NUMERIC(36, 2)) AS DataSize_MB,
CAST(ROUND((CASE WHEN (a1.used + ISNULL(a4.used,0)) > a1.data THEN (a1.used + ISNULL(a4.used,0)) - a1.data ELSE 0 END) * 8 / 1024.00, 2) AS NUMERIC(36, 2)) AS IndexSize_MB,
CAST(ROUND((CASE WHEN (a1.reserved + ISNULL(a4.reserved,0)) > a1.used THEN (a1.reserved + ISNULL(a4.reserved,0)) - a1.used ELSE 0 END) * 8 / 1024.00, 2) AS NUMERIC(36, 2)) AS UnusedSize_MB,
--'| |' Separator_MB_GB,
CAST(ROUND(((a1.reserved + ISNULL(a4.reserved,0)) * 8) / 1024.00 / 1024.00, 2) AS NUMERIC(36, 2)) AS ReservedSize_GB,
CAST(ROUND(a1.data * 8 / 1024.00 / 1024.00, 2) AS NUMERIC(36, 2)) AS DataSize_GB,
CAST(ROUND((CASE WHEN (a1.used + ISNULL(a4.used,0)) > a1.data THEN (a1.used + ISNULL(a4.used,0)) - a1.data ELSE 0 END) * 8 / 1024.00 / 1024.00, 2) AS NUMERIC(36, 2)) AS IndexSize_GB,
CAST(ROUND((CASE WHEN (a1.reserved + ISNULL(a4.reserved,0)) > a1.used THEN (a1.reserved + ISNULL(a4.reserved,0)) - a1.used ELSE 0 END) * 8 / 1024.00 / 1024.00, 2) AS NUMERIC(36, 2)) AS UnusedSize_GB
FROM
(SELECT
ps.object_id,
SUM (CASE WHEN (ps.index_id < 2) THEN row_count ELSE 0 END) AS [rows],
SUM (ps.reserved_page_count) AS reserved,
SUM (CASE
WHEN (ps.index_id < 2) THEN (ps.in_row_data_page_count + ps.lob_used_page_count + ps.row_overflow_used_page_count)
ELSE (ps.lob_used_page_count + ps.row_overflow_used_page_count)
END
) AS data,
SUM (ps.used_page_count) AS used
FROM sys.dm_db_partition_stats ps
--===Remove the following comment for SQL Server 2014+
--WHERE ps.object_id NOT IN (SELECT object_id FROM sys.tables WHERE is_memory_optimized = 1)
GROUP BY ps.object_id) AS a1
LEFT OUTER JOIN
(SELECT
it.parent_id,
SUM(ps.reserved_page_count) AS reserved,
SUM(ps.used_page_count) AS used
FROM sys.dm_db_partition_stats ps
INNER JOIN sys.internal_tables it ON (it.object_id = ps.object_id)
WHERE it.internal_type IN (202,204)
GROUP BY it.parent_id) AS a4 ON (a4.parent_id = a1.object_id)
INNER JOIN sys.all_objects a2 ON ( a1.object_id = a2.object_id )
INNER JOIN sys.schemas a3 ON (a2.schema_id = a3.schema_id)
WHERE a2.type <> N'S' and a2.type <> N'IT'
--AND a2.name = 'MyTable' --Filter for specific table
--ORDER BY a3.name, a2.name
ORDER BY ReservedSize_MB DESC
对于Azure,我使用了以下方法:
您应该拥有SSMS v17.x
我用了;
正如用户 Sparrow所说的:
打开Databases
>并选择Tables,
然后按F7键,
您应该看到row count
:
这里的 SSMS 已连接到Azure数据库
我们使用表分区,由于记录重复,上面提供的查询有些麻烦。
对于需要此功能的用户,可以在生成“按表使用磁盘”报告时在SQL Server 2014运行的查询下方找到。我认为它也可以与早期版本的SQL Server一起使用。
它像一种魅力。
SELECT
a2.name AS [tablename],
a1.rows as row_count,
(a1.reserved + ISNULL(a4.reserved,0))* 8 AS reserved,
a1.data * 8 AS data,
(CASE WHEN (a1.used + ISNULL(a4.used,0)) > a1.data THEN (a1.used + ISNULL(a4.used,0)) - a1.data ELSE 0 END) * 8 AS index_size,
(CASE WHEN (a1.reserved + ISNULL(a4.reserved,0)) > a1.used THEN (a1.reserved + ISNULL(a4.reserved,0)) - a1.used ELSE 0 END) * 8 AS unused
FROM
(SELECT
ps.object_id,
SUM (
CASE
WHEN (ps.index_id < 2) THEN row_count
ELSE 0
END
) AS [rows],
SUM (ps.reserved_page_count) AS reserved,
SUM (
CASE
WHEN (ps.index_id < 2) THEN (ps.in_row_data_page_count + ps.lob_used_page_count + ps.row_overflow_used_page_count)
ELSE (ps.lob_used_page_count + ps.row_overflow_used_page_count)
END
) AS data,
SUM (ps.used_page_count) AS used
FROM sys.dm_db_partition_stats ps
WHERE ps.object_id NOT IN (SELECT object_id FROM sys.tables WHERE is_memory_optimized = 1)
GROUP BY ps.object_id) AS a1
LEFT OUTER JOIN
(SELECT
it.parent_id,
SUM(ps.reserved_page_count) AS reserved,
SUM(ps.used_page_count) AS used
FROM sys.dm_db_partition_stats ps
INNER JOIN sys.internal_tables it ON (it.object_id = ps.object_id)
WHERE it.internal_type IN (202,204)
GROUP BY it.parent_id) AS a4 ON (a4.parent_id = a1.object_id)
INNER JOIN sys.all_objects a2 ON ( a1.object_id = a2.object_id )
INNER JOIN sys.schemas a3 ON (a2.schema_id = a3.schema_id)
WHERE a2.type <> N'S' and a2.type <> N'IT'
ORDER BY a3.name, a2.name
-- Show the size of all the tables in a database sort by data size descending
SET NOCOUNT ON
DECLARE @TableInfo TABLE (tablename varchar(255), rowcounts int, reserved varchar(255), DATA varchar(255), index_size varchar(255), unused varchar(255))
DECLARE @cmd1 varchar(500)
SET @cmd1 = 'exec sp_spaceused ''?'''
INSERT INTO @TableInfo (tablename,rowcounts,reserved,DATA,index_size,unused)
EXEC sp_msforeachtable @command1=@cmd1
SELECT * FROM @TableInfo ORDER BY Convert(int,Replace(DATA,' KB','')) DESC
Mar_c的答案有一个小变化,因为我经常返回此页面,并且按大多数行的第一顺序进行排序:
SELECT
t.NAME AS TableName,
s.Name AS SchemaName,
p.rows AS RowCounts,
SUM(a.total_pages) * 8 AS TotalSpaceKB,
SUM(a.used_pages) * 8 AS UsedSpaceKB,
(SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB
FROM
sys.tables t
INNER JOIN
sys.indexes i ON t.OBJECT_ID = i.object_id
INNER JOIN
sys.partitions p ON i.object_id = p.OBJECT_ID AND i.index_id = p.index_id
INNER JOIN
sys.allocation_units a ON p.partition_id = a.container_id
LEFT OUTER JOIN
sys.schemas s ON t.schema_id = s.schema_id
WHERE
t.NAME NOT LIKE 'dt%'
AND t.is_ms_shipped = 0
AND i.OBJECT_ID > 255
GROUP BY
t.Name, s.Name, p.Rows
ORDER BY
--p.rows DESC --Uncomment to order by amount rows instead of size in KB.
SUM(a.total_pages) DESC
这将为您提供大小,并记录每个表的计数。
set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
-- Get a list of tables and their sizes on disk
ALTER PROCEDURE [dbo].[sp_Table_Sizes]
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
DECLARE @table_name VARCHAR(500)
DECLARE @schema_name VARCHAR(500)
DECLARE @tab1 TABLE(
tablename VARCHAR (500) collate database_default
,schemaname VARCHAR(500) collate database_default
)
CREATE TABLE #temp_Table (
tablename sysname
,row_count INT
,reserved VARCHAR(50) collate database_default
,data VARCHAR(50) collate database_default
,index_size VARCHAR(50) collate database_default
,unused VARCHAR(50) collate database_default
)
INSERT INTO @tab1
SELECT Table_Name, Table_Schema
FROM information_schema.tables
WHERE TABLE_TYPE = 'BASE TABLE'
DECLARE c1 CURSOR FOR
SELECT Table_Schema + '.' + Table_Name
FROM information_schema.tables t1
WHERE TABLE_TYPE = 'BASE TABLE'
OPEN c1
FETCH NEXT FROM c1 INTO @table_name
WHILE @@FETCH_STATUS = 0
BEGIN
SET @table_name = REPLACE(@table_name, '[','');
SET @table_name = REPLACE(@table_name, ']','');
-- make sure the object exists before calling sp_spacedused
IF EXISTS(SELECT id FROM sysobjects WHERE id = OBJECT_ID(@table_name))
BEGIN
INSERT INTO #temp_Table EXEC sp_spaceused @table_name, false;
END
FETCH NEXT FROM c1 INTO @table_name
END
CLOSE c1
DEALLOCATE c1
SELECT t1.*
,t2.schemaname
FROM #temp_Table t1
INNER JOIN @tab1 t2 ON (t1.tablename = t2.tablename )
ORDER BY schemaname,t1.tablename;
DROP TABLE #temp_Table
END
{ }
编辑器工具栏上的“代码示例”按钮(),以很好地格式化和语法突出显示它!
这是一种通过以下步骤快速获取所有表大小的方法:
编写给定的T-SQL命令以列出所有数据库表:
select 'exec sp_spaceused ' + TABLE_NAME from INFORMATION_SCHEMA.TABLES where TABLE_TYPE = 'BASE TABLE'
现在复制数据库表的列表,并将其复制到新的查询分析器窗口中
exec sp_spaceused table1
exec sp_spaceused table2
exec sp_spaceused table3
exec sp_spaceused table4
exec sp_spaceused table5
在SQL 查询分析器中,从顶部工具栏选项中选择结果到文件(Ctrl+ Shift+ F)。
现在,最后点击上方工具栏上标记为红色的“ 执行”按钮。
现在,所有表的数据库大小都存储在计算机上的文件中。
我在marc_s答案的顶部增加了几列:
with fs
as
(
select i.object_id,
p.rows AS RowCounts,
SUM(a.total_pages) * 8 AS TotalSpaceKb
from sys.indexes i INNER JOIN
sys.partitions p ON i.object_id = p.OBJECT_ID AND i.index_id = p.index_id INNER JOIN
sys.allocation_units a ON p.partition_id = a.container_id
WHERE
i.OBJECT_ID > 255
GROUP BY
i.object_id,
p.rows
)
SELECT
t.NAME AS TableName,
fs.RowCounts,
fs.TotalSpaceKb,
t.create_date,
t.modify_date,
( select COUNT(1)
from sys.columns c
where c.object_id = t.object_id ) TotalColumns
FROM
sys.tables t INNER JOIN
fs ON t.OBJECT_ID = fs.object_id
WHERE
t.NAME NOT LIKE 'dt%'
AND t.is_ms_shipped = 0
ORDER BY
t.Name
我的帖子仅与SQL Server 2000相关,并且已经过测试,可以在我的环境中工作。
此代码访问单个实例的所有可能的数据库,而不仅仅是单个数据库。
我使用两个临时表来帮助收集适当的数据,然后将结果转储到一个“实时”表中。
返回的数据是:DatabaseName,DatabaseTableName,行(在表中),数据(表的大小以KB表示),条目数据(我发现这对我上次运行脚本的时间很有用)。
该代码的缺点是'data'字段未存储为int(字符'KB'保留在该字段中),这对于排序很有用(但并非完全必要)。
希望这段代码可以帮助某个人并节省一些时间!
CREATE PROCEDURE [dbo].[usp_getAllDBTableSizes]
AS
BEGIN
SET NOCOUNT OFF
CREATE TABLE #DatabaseTables([dbname] sysname,TableName sysname)
CREATE TABLE #AllDatabaseTableSizes(Name sysname,[rows] VARCHAR(18), reserved VARCHAR(18), data VARCHAR(18), index_size VARCHAR(18), unused VARCHAR(18))
DECLARE @SQL nvarchar(4000)
SET @SQL='select ''?'' AS [Database], Table_Name from [?].information_schema.tables WHERE TABLE_TYPE = ''BASE TABLE'' '
INSERT INTO #DatabaseTables(DbName, TableName)
EXECUTE sp_msforeachdb @Command1=@SQL
DECLARE AllDatabaseTables CURSOR LOCAL READ_ONLY FOR
SELECT TableName FROM #DatabaseTables
DECLARE AllDatabaseNames CURSOR LOCAL READ_ONLY FOR
SELECT DBName FROM #DatabaseTables
DECLARE @DBName sysname
OPEN AllDatabaseNames
DECLARE @TName sysname
OPEN AllDatabaseTables
WHILE 1=1 BEGIN
FETCH NEXT FROM AllDatabaseNames INTO @DBName
FETCH NEXT FROM AllDatabaseTables INTO @TName
IF @@FETCH_STATUS<>0 BREAK
INSERT INTO #AllDatabaseTableSizes
EXEC ( 'EXEC ' + @DBName + '.dbo.sp_spaceused ' + @TName)
END
--http://msdn.microsoft.com/en-us/library/aa175920(v=sql.80).aspx
INSERT INTO rsp_DatabaseTableSizes (DatabaseName, name, [rows], data)
SELECT [dbname], name, [rows], data FROM #DatabaseTables
INNER JOIN #AllDatabaseTableSizes
ON #DatabaseTables.TableName = #AllDatabaseTableSizes.Name
GROUP BY [dbname] , name, [rows], data
ORDER BY [dbname]
--To be honest, I have no idea what exact duplicates we are dropping
-- but in my case a near enough approach has been good enough.
DELETE FROM [rsp_DatabaseTableSizes]
WHERE name IN
(
SELECT name
FROM [rsp_DatabaseTableSizes]
GROUP BY name
HAVING COUNT(*) > 1
)
DROP TABLE #DatabaseTables
DROP TABLE #AllDatabaseTableSizes
CLOSE AllDatabaseTables
DEALLOCATE AllDatabaseTables
CLOSE AllDatabaseNames
DEALLOCATE AllDatabaseNames
END
--EXEC [dbo].[usp_getAllDBTableSizes]
如果您需要知道,rsp_DatabaseTableSizes表是通过以下方式创建的:
CREATE TABLE [dbo].[rsp_DatabaseSizes](
[DatabaseName] [varchar](1000) NULL,
[dbSize] [decimal](15, 2) NULL,
[DateUpdated] [smalldatetime] NULL
) ON [PRIMARY]
GO
作为对marc_s答案(已被接受的答案)的简单扩展,将其调整为返回列数并允许过滤:
SELECT *
FROM
(
SELECT
t.NAME AS TableName,
s.Name AS SchemaName,
p.rows AS RowCounts,
COUNT(DISTINCT c.COLUMN_NAME) as ColumnCount,
SUM(a.total_pages) * 8 AS TotalSpaceKB,
(SUM(a.used_pages) * 8) AS UsedSpaceKB,
(SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB
FROM
sys.tables t
INNER JOIN
sys.indexes i ON t.OBJECT_ID = i.object_id
INNER JOIN
sys.partitions p ON i.object_id = p.OBJECT_ID AND i.index_id = p.index_id
INNER JOIN
sys.allocation_units a ON p.partition_id = a.container_id
INNER JOIN
INFORMATION_SCHEMA.COLUMNS c ON t.NAME = c.TABLE_NAME
LEFT OUTER JOIN
sys.schemas s ON t.schema_id = s.schema_id
WHERE
t.NAME NOT LIKE 'dt%'
AND t.is_ms_shipped = 0
AND i.OBJECT_ID > 255
GROUP BY
t.Name, s.Name, p.Rows
) AS Result
WHERE
RowCounts > 1000
AND ColumnCount > 10
ORDER BY
UsedSpaceKB DESC
在上面的@Mark回答中,添加了@ updateusage ='true'以强制使用最新的大小统计信息(https://msdn.microsoft.com/zh-cn/library/ms188776.aspx):
SET NOCOUNT ON
DECLARE @TableInfo TABLE (tablename varchar(255), rowcounts int, reserved varchar(255), DATA varchar(255), index_size varchar(255), unused varchar(255))
DECLARE @cmd1 varchar(500)
SET @cmd1 = 'exec sp_spaceused @objname =''?'', @updateusage =''true'' '
INSERT INTO @TableInfo (tablename,rowcounts,reserved,DATA,index_size,unused)
EXEC sp_msforeachtable @command1=@cmd1
SELECT * FROM @TableInfo ORDER BY Convert(int,Replace(DATA,' KB','')) DESC
这是一个示例查询,用于获取按大小降序排列的大于1GB的表。
USE YourDB
GO
DECLARE @Mult float = 8
SET @Mult = @Mult / POWER(2, 20) -- Use POWER(2, 10) for MBs
; WITH CTE AS
(
SELECT
i.object_id,
Rows = MAX(p.rows),
TotalSpaceGB = ROUND(SUM(a.total_pages) * @Mult, 0),
UsedSpaceGB = ROUND(SUM(a.used_pages) * @Mult, 0)
FROM
sys.indexes i
JOIN
sys.partitions p ON i.object_id = p.object_id AND i.index_id = p.index_id
JOIN
sys.allocation_units a ON p.partition_id = a.container_id
WHERE
i.object_id > 255
GROUP BY
i.object_id
HAVING
SUM(a.total_pages) * @Mult > 1
)
SELECT
SchemaName = s.name,
TableName = t.name,
c.TotalSpaceGB,
c.UsedSpaceGB,
UnusedSpaceGB = c.TotalSpaceGB - c.UsedSpaceGB,
[RowCount] = c.Rows
FROM
CTE c
JOIN
sys.tables t ON t.object_id = c.object_id
JOIN
sys.schemas s ON t.schema_id = s.schema_id
ORDER BY
c.TotalSpaceGB DESC