我继承了一个相当大的SQL Server数据库。考虑到它包含的数据,它似乎比我预期的要占用更多的空间。
是否有一种简单的方法来确定每个表占用的磁盘空间?
我继承了一个相当大的SQL Server数据库。考虑到它包含的数据,它似乎比我预期的要占用更多的空间。
是否有一种简单的方法来确定每个表占用的磁盘空间?
当前回答
下面是一个示例查询,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
其他回答
exec sp_spaceused N'dbo.MyTable'
对于所有表,请使用。。(根据保罗的评论补充)
exec sp_MSForEachTable 'exec sp_spaceused [?]'
对于Azure,我使用了:
您应该有SSMS v17.x+
我使用;
正如用户Sparrow所提到的:
打开数据库>并选择表,然后按F7键你应该看到行数作为:
此处的SSMS连接到Azure数据库
要获取一个数据库中的所有表大小,可以使用以下查询:
Exec sys.sp_MSforeachtable ' sp_spaceused "?" '
您可以将其更改为将所有结果插入临时表,然后从临时表中进行选择。
Insert into #TempTable Exec sys.sp_MSforeachtable ' sp_spaceused "?" '
Select * from #TempTable
这将为您提供每个表的大小和记录计数。
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
以下是通过以下步骤快速获取所有表格大小的方法:
编写给定的T-SQL命令以列出所有数据库表:从INFORMATION_SCHEMA.TABLES中选择“exec sp_spaceused”+TABLE_NAME,其中TABLE_TYPE=“BASE TABLE”现在复制数据库表列表,并将其复制到新的查询分析器窗口中执行sp_spaceused表1执行sp_spaceused表2执行sp_spaceused表3执行sp_spaceused表4执行sp_spaceused表5在SQL查询分析器中,从顶部工具栏中选择“结果到文件”选项(Ctrl+Shift+F)。现在,最后点击上面工具栏中标记为红色的Execute按钮。所有表的数据库大小现在存储在计算机上的文件中。