选择SQL Server数据库大小
选择SQL Server数据库大小
提问于 2013-08-02 18:12:40
如何查询我的sql服务器以仅获得数据库的大小？
我使用了这个：
use "MY_DB"
exec sp_spaceused我得到了这个：
database_name database_size unallocated space
My_DB 17899.13 MB 5309.39 MB它返回了几个我不需要的列，也许有一个从这个存储过程中选择database_size列的技巧？
我还尝试了下面的代码：
SELECT DB_NAME(database_id) AS DatabaseName,
Name AS Logical_Name,
Physical_Name,
(size * 8) / 1024 SizeMB
FROM sys.master_files
WHERE DB_NAME(database_id) = 'MY_DB'它给我的结果是：
DatabaseName Logical_Name Physical_Name SizeMB
MY_DB MY_DB D:\MSSQL\Data\MY_DB.mdf 10613
MY_DB MY_DB_log D:\MSSQL\Data\MY_DB.ldf 7286所以我写了这个：
SELECT SUM(SizeMB)
FROM (
SELECT DB_NAME(database_id) AS DatabaseName,
Name AS Logical_Name,
Physical_Name,
(size * 8) / 1024 SizeMB
FROM sys.master_files
WHERE DB_NAME(database_id) = 'MY_DB'
) AS TEMP我得到: 1183
所以它是有效的，但也许有一种适当的方法可以实现这一点？
回答 6
Stack Overflow用户
发布于 2014-08-23 01:39:47
还要将结果与以下查询的结果进行比较
EXEC sp_helpdb @dbname= 'MSDB'它会产生类似于下面的结果
有一篇好文章-- Different ways to determine free space for SQL Server databases and database files
Stack Overflow用户
发布于 2018-02-23 04:32:37
SELECT sys.databases.name AS [Database Name],
CONVERT(VARCHAR,SUM(size)*8/1024)+' MB' AS [Size]
FROM sys.databases
JOIN sys.master_files
ON sys.databases.database_id=sys.master_files.database_id
GROUP BY sys.databases.name
ORDER BY sys.databases.name Stack Overflow用户
发布于 2016-03-14 14:00:17
您可以在this link之后检查该查询是如何工作的。
IF OBJECT_ID('tempdb..#spacetable') IS NOT NULL
DROP TABLE tempdb..#spacetable
create table #spacetable
(
database_name varchar(50) ,
total_size_data int,
space_util_data int,
space_data_left int,
percent_fill_data float,
total_size_data_log int,
space_util_log int,
space_log_left int,
percent_fill_log char(50),
[total db size] int,
[total size used] int,
[total size left] int
)
insert into #spacetable
EXECUTE master.sys.sp_MSforeachdb 'USE [?];
select x.[DATABASE NAME],x.[total size data],x.[space util],x.[total size data]-x.[space util] [space left data],
x.[percent fill],y.[total size log],y.[space util],
y.[total size log]-y.[space util] [space left log],y.[percent fill],
y.[total size log]+x.[total size data] ''total db size''
,x.[space util]+y.[space util] ''total size used'',
(y.[total size log]+x.[total size data])-(y.[space util]+x.[space util]) ''total size left''
from (select DB_NAME() ''DATABASE NAME'',
sum(size*8/1024) ''total size data'',sum(FILEPROPERTY(name,''SpaceUsed'')*8/1024) ''space util''
,case when sum(size*8/1024)=0 then ''divide by zero'' else
substring(cast((sum(FILEPROPERTY(name,''SpaceUsed''))*1.0*100/sum(size)) as CHAR(50)),1,6) end ''percent fill''
from sys.master_files where database_id=DB_ID(DB_NAME()) and type=0
group by type_desc ) as x ,
(select
sum(size*8/1024) ''total size log'',sum(FILEPROPERTY(name,''SpaceUsed'')*8/1024) ''space util''
,case when sum(size*8/1024)=0 then ''divide by zero'' else
substring(cast((sum(FILEPROPERTY(name,''SpaceUsed''))*1.0*100/sum(size)) as CHAR(50)),1,6) end ''percent fill''
from sys.master_files where database_id=DB_ID(DB_NAME()) and type=1
group by type_desc )y'
select * from #spacetable
order by database_name
drop table #spacetable页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/18014392
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