如何判断哪些表在SQL Server 2005数据库中占用的空间最多?
我确信有一些系统存储过程可以显示此信息。
我有一个从1tb增长到23tb的测试数据库。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。它确实删除了我确信会增加事务日志的内容。但这让我思考了这个问题。
信息
最大的问题是dbo.Download表,它创建了大量的存储空间,实际上并不需要,我在截断它之前有3 3GB,然后是52MB ;)
发布于 2010-10-14 03:28:39
尝试这个脚本-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)
发布于 2010-10-14 03:31:12
Exec sp_spaceused N'YourTableName'
或者,如果您想为数据库中的每个表执行sp_spaceused
,则可以使用下面的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
上面的SQL来自here。
发布于 2018-12-11 23:40:50
感谢@marc_s的回答。我需要知道数据与索引空间的关系,所以我继续对查询进行扩展,以包括这一点。
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
https://stackoverflow.com/questions/3927231
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