信息

Question

如何判断哪些表占用了SQL Server 2005数据库中最多的空间？

我确信有一些系统存储过程可以显示此信息。

我有一个TEST数据库，从1tb增长到23tb。我们目前正在数据库中进行大量的客户端转换测试，这需要多次运行相同的转换存储过程。我确实正在增加事务日志的DELETE。但这让我想到问这个问题。

信息

最大的问题是dbo.Download表，它创建了实际上不需要的大容量存储，在截断之前我有3GB，然后是52MB;）

Answer 1

尝试此脚本 - 它将列出数据库中所有表的行数和数据行使用的空间（以及使用的总空间）：

SELECT 
 t.NAME AS TableName,
 i.name AS indexName,
 SUM(p.rows) AS RowCounts,
 SUM(a.total_pages) AS TotalPages, 
 SUM(a.used_pages) AS UsedPages, 
 SUM(a.data_pages) AS DataPages,
 (SUM(a.total_pages) * 8) / 1024 AS TotalSpaceMB, 
 (SUM(a.used_pages) * 8) / 1024 AS UsedSpaceMB, 
 (SUM(a.data_pages) * 8) / 1024 AS DataSpaceMB
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
WHERE 
 t.NAME NOT LIKE 'dt%' AND
 i.OBJECT_ID > 255 AND  
 i.index_id <= 1
GROUP BY 
 t.NAME, i.object_id, i.index_id, i.name 
ORDER BY 
 OBJECT_NAME(i.object_id)

Answer 2

使用sp_spacedUsed

Exec sp_spaceused N'YourTableName'

或者，如果要为数据库中的每个表执行sp_spaceused，则可以使用此SQL：

set nocount on
create table #spaceused (
  name nvarchar(120),
  rows char(11),
  reserved varchar(18),
  data varchar(18),
  index_size varchar(18),
  unused varchar(18)
)

declare Tables cursor for
  select name
  from sysobjects where type='U'
  order by name asc

OPEN Tables
DECLARE @table varchar(128)

FETCH NEXT FROM Tables INTO @table

WHILE @@FETCH_STATUS = 0
BEGIN
  insert into #spaceused exec sp_spaceused @table
  FETCH NEXT FROM Tables INTO @table
END

CLOSE Tables
DEALLOCATE Tables 

select * from #spaceused
drop table #spaceused

exec sp_spaceused

以上SQL来自here

Answer 3

Rossisdead的评论回答了这个问题对我来说是最好的，我希望它不会被置于评论中。这对我这样的人来说非常有用，不会尝试编写解决方案脚本（OP确实不要求提供代码段）

如果您正在使用Management Studio，也可以右键单击数据库并转到报告 - ＆gt;表格中的磁盘使用情况相同结果

Answer 4

感谢@marc_s的回答。我需要了解数据与索引空间的关系，因此我继续进行查询，并扩大了查询范围。

SELECT TableName
    , SUM(DataRowCounts) AS DataRowCounts
    , SUM(DataTotalSpaceGB) AS DataTotalSpaceGB
    , SUM(DataSpaceUsedGB) AS DataSpaceUsedGB
    , SUM(DataUnusedSpaceGB) AS DataUnusedSpaceGB
    , SUM(IndexRowCounts) AS IndexRowCounts
    , SUM(IndexTotalSpaceGB) AS IndexTotalSpaceGB
    , SUM(IndexSpaceUsedGB) AS IndexSpaceUsedGB
    , SUM(IndexUnusedSpaceGB) AS IndexUnusedSpaceGB
    , SUM(DataTotalSpaceGB) + SUM(IndexTotalSpaceGB) AS TotalSpaceGB
FROM
(
SELECT t.NAME AS TableName
    , i.type_desc AS IndexType
    , CASE WHEN i.type_desc IN ('CLUSTERED', 'CLUSTERED COLUMNSTORE', 'HEAP') THEN CAST(ROUND(((SUM(a.total_pages) * 8) / 1024.00), 2)/1000 AS NUMERIC(36, 2)) ELSE 0 END AS DataTotalSpaceGB
    , CASE WHEN i.type_desc IN ('CLUSTERED', 'CLUSTERED COLUMNSTORE', 'HEAP') THEN CAST(ROUND(((SUM(a.used_pages) * 8) / 1024.00), 2)/1000 AS NUMERIC(36, 2))  ELSE 0 END AS DataSpaceUsedGB    
    , CASE WHEN i.type_desc IN ('CLUSTERED', 'CLUSTERED COLUMNSTORE', 'HEAP') THEN CAST(ROUND(((SUM(a.total_pages) - SUM(a.used_pages)) * 8) / 1024.00, 2)/1000 AS NUMERIC(36, 2)) ELSE 0 END AS DataUnusedSpaceGB
    , CASE WHEN i.type_desc IN ('CLUSTERED', 'CLUSTERED COLUMNSTORE', 'HEAP') THEN SUM(p.Rows) ELSE 0 END AS DataRowCounts
    , CASE WHEN i.type_desc = 'NONCLUSTERED' THEN CAST(ROUND(((SUM(a.total_pages) * 8) / 1024.00), 2)/1000 AS NUMERIC(36, 2)) ELSE 0 END AS IndexTotalSpaceGB
    , CASE WHEN i.type_desc = 'NONCLUSTERED' THEN CAST(ROUND(((SUM(a.used_pages) * 8) / 1024.00), 2)/1000 AS NUMERIC(36, 2))  ELSE 0 END AS IndexSpaceUsedGB    
    , CASE WHEN i.type_desc = 'NONCLUSTERED' THEN CAST(ROUND(((SUM(a.total_pages) - SUM(a.used_pages)) * 8) / 1024.00, 2)/1000 AS NUMERIC(36, 2)) ELSE 0 END AS IndexUnusedSpaceGB  
    , CASE WHEN i.type_desc = 'NONCLUSTERED' THEN SUM(p.Rows) ELSE 0 END AS IndexRowCounts
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 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
    AND s.Name = 'dbo' --update this filter
    AND t.Name = 'MyTable'
GROUP BY t.Name
    , i.type_desc
) x
GROUP BY TableName
ORDER BY TotalSpaceGB DESC

如何判断哪些表占用了SQL Server 2005数据库中最多的空间？

信息

4 个答案: