是否可以列出有关SQL Server上所有数据库的文件(MDF / LDF)的信息?
我想得到一个列表,显示哪个数据库正在使用本地磁盘上的哪些文件。
我试过的
exec sp_databases
所有数据库select * from sys.databases
显示有关每个数据库的很多信息-但不幸的是,它没有显示每个数据库使用的文件。select * from sys.database_files
显示master
数据库的mdf / ldf文件-但不显示其他数据库
Answers:
您可以使用sys.master_files。
主数据库中存储的每个数据库文件包含一行。这是单个系统范围的视图。
DB_NAME(database_id)
代替sys.databases
我正在使用脚本在每个文件中获取空白空间:
Create Table ##temp
(
DatabaseName sysname,
Name sysname,
physical_name nvarchar(500),
size decimal (18,2),
FreeSpace decimal (18,2)
)
Exec sp_msforeachdb '
Use [?];
Insert Into ##temp (DatabaseName, Name, physical_name, Size, FreeSpace)
Select DB_NAME() AS [DatabaseName], Name, physical_name,
Cast(Cast(Round(cast(size as decimal) * 8.0/1024.0,2) as decimal(18,2)) as nvarchar) Size,
Cast(Cast(Round(cast(size as decimal) * 8.0/1024.0,2) as decimal(18,2)) -
Cast(FILEPROPERTY(name, ''SpaceUsed'') * 8.0/1024.0 as decimal(18,2)) as nvarchar) As FreeSpace
From sys.database_files
'
Select * From ##temp
drop table ##temp
大小以KB表示。
Use [?]
应该做的?它给出了一个错误,即找不到该存储过程。删除它只会显示系统数据库多次。
我创建了这个查询:
SELECT
db.name AS [Database Name],
mf.name AS [Logical Name],
mf.type_desc AS [File Type],
mf.physical_name AS [Path],
CAST(
(mf.Size * 8
) / 1024.0 AS DECIMAL(18, 1)) AS [Initial Size (MB)],
'By '+IIF(
mf.is_percent_growth = 1, CAST(mf.growth AS VARCHAR(10))+'%', CONVERT(VARCHAR(30), CAST(
(mf.growth * 8
) / 1024.0 AS DECIMAL(18, 1)))+' MB') AS [Autogrowth],
IIF(mf.max_size = 0, 'No growth is allowed', IIF(mf.max_size = -1, 'Unlimited', CAST(
(
CAST(mf.max_size AS BIGINT) * 8
) / 1024 AS VARCHAR(30))+' MB')) AS [MaximumSize]
FROM
sys.master_files AS mf
INNER JOIN sys.databases AS db ON
db.database_id = mf.database_id
执行以下sql(仅当您没有针对同一数据库的多个mdf / ldf文件时,该命令才有效)
SELECT
db.name AS DBName,
(select mf.Physical_Name FROM sys.master_files mf where mf.type_desc = 'ROWS' and db.database_id = mf.database_id ) as DataFile,
(select mf.Physical_Name FROM sys.master_files mf where mf.type_desc = 'LOG' and db.database_id = mf.database_id ) as LogFile
FROM sys.databases db
将返回此输出
DBName DataFile LogFile
--------------------------------------------------------------------------------
master C:\....\master.mdf C:\....\mastlog.ldf
tempdb C:\....\tempdb.mdf C:\....\templog.ldf
model C:\....\model.mdf C:\....\modellog.ldf
和其余的数据库
如果您的TempDB具有多个MDF(如我的具有),则此脚本将失败。但是,您可以使用
WHERE db.database_id > 4
最后,它将返回除系统数据库以外的所有数据库。
该脚本列出了您正在寻找的大部分内容,并且可以根据需要进行修改。请注意,它正在其中创建一个永久表-您可能要更改它。它是较大脚本的一个子集,该脚本还总结了各种服务器上的备份和作业信息。
IF OBJECT_ID('tempdb..#DriveInfo') IS NOT NULL
DROP TABLE #DriveInfo
CREATE TABLE #DriveInfo
(
Drive CHAR(1)
,MBFree INT
)
INSERT INTO #DriveInfo
EXEC master..xp_fixeddrives
IF OBJECT_ID('[dbo].[Tmp_tblDatabaseInfo]', 'U') IS NOT NULL
DROP TABLE [dbo].[Tmp_tblDatabaseInfo]
CREATE TABLE [dbo].[Tmp_tblDatabaseInfo](
[ServerName] [nvarchar](128) NULL
,[DBName] [nvarchar](128) NULL
,[database_id] [int] NULL
,[create_date] datetime NULL
,[CompatibilityLevel] [int] NULL
,[collation_name] [nvarchar](128) NULL
,[state_desc] [nvarchar](60) NULL
,[recovery_model_desc] [nvarchar](60) NULL
,[DataFileLocations] [nvarchar](4000)
,[DataFilesMB] money null
,DataVolumeFreeSpaceMB INT NULL
,[LogFileLocations] [nvarchar](4000)
,[LogFilesMB] money null
,LogVolumeFreeSpaceMB INT NULL
) ON [PRIMARY]
INSERT INTO [dbo].[Tmp_tblDatabaseInfo]
SELECT
@@SERVERNAME AS [ServerName]
,d.name AS DBName
,d.database_id
,d.create_date
,d.compatibility_level
,CAST(d.collation_name AS [nvarchar](128)) AS collation_name
,d.[state_desc]
,d.recovery_model_desc
,(select physical_name + ' | ' AS [text()]
from sys.master_files m
WHERE m.type = 0 and m.database_id = d.database_id
ORDER BY file_id
FOR XML PATH ('')) AS DataFileLocations
,(select sum(size) from sys.master_files m WHERE m.type = 0 and m.database_id = d.database_id) AS DataFilesMB
,NULL
,(select physical_name + ' | ' AS [text()]
from sys.master_files m
WHERE m.type = 1 and m.database_id = d.database_id
ORDER BY file_id
FOR XML PATH ('')) AS LogFileLocations
,(select sum(size) from sys.master_files m WHERE m.type = 1 and m.database_id = d.database_id) AS LogFilesMB
,NULL
FROM sys.databases d
WHERE d.database_id > 4 --Exclude basic system databases
UPDATE [dbo].[Tmp_tblDatabaseInfo]
SET DataFileLocations =
CASE WHEN LEN(DataFileLocations) > 4 THEN LEFT(DataFileLocations,LEN(DataFileLocations)-2) ELSE NULL END
,LogFileLocations =
CASE WHEN LEN(LogFileLocations) > 4 THEN LEFT(LogFileLocations,LEN(LogFileLocations)-2) ELSE NULL END
,DataFilesMB =
CASE WHEN DataFilesMB > 0 THEN DataFilesMB * 8 / 1024.0 ELSE NULL END
,LogFilesMB =
CASE WHEN LogFilesMB > 0 THEN LogFilesMB * 8 / 1024.0 ELSE NULL END
,DataVolumeFreeSpaceMB =
(SELECT MBFree FROM #DriveInfo WHERE Drive = LEFT( DataFileLocations,1))
,LogVolumeFreeSpaceMB =
(SELECT MBFree FROM #DriveInfo WHERE Drive = LEFT( LogFileLocations,1))
select * from [dbo].[Tmp_tblDatabaseInfo]
LogVolumeFreeSpaceMB
它对于所有文件总是显示相同的数量,在我的案例中是44756。是否可以获得实际的可用空间?还是LDF所在的驱动器上的最大可用空间数?
如果在其中一个数据库中使用了多个数据文件(例如“ .ndf”文件类型),则查询将出错。
这是使用联接而不是子查询的查询版本。
干杯!
SELECT
db.name AS DBName,
db.database_id,
mfr.physical_name AS DataFile,
mfl.physical_name AS LogFile
FROM sys.databases db
JOIN sys.master_files mfr ON db.database_id=mfr.database_id AND mfr.type_desc='ROWS'
JOIN sys.master_files mfl ON db.database_id=mfl.database_id AND mfl.type_desc='LOG'
ORDER BY db.database_id
下面的脚本可用于获取以下信息:1. DB大小信息2. FileSpaceInfo 3. AutoGrowth 4.恢复模型5. Log_reuse_backup信息
CREATE TABLE #tempFileInformation
(
DBNAME NVARCHAR(256),
[FILENAME] NVARCHAR(256),
[TYPE] NVARCHAR(120),
FILEGROUPNAME NVARCHAR(120),
FILE_LOCATION NVARCHAR(500),
FILESIZE_MB DECIMAL(10,2),
USEDSPACE_MB DECIMAL(10,2),
FREESPACE_MB DECIMAL(10,2),
AUTOGROW_STATUS NVARCHAR(100)
)
GO
DECLARE @SQL VARCHAR(2000)
SELECT @SQL = '
USE [?]
INSERT INTO #tempFileInformation
SELECT
DBNAME =DB_NAME(),
[FILENAME] =A.NAME,
[TYPE] = A.TYPE_DESC,
FILEGROUPNAME = fg.name,
FILE_LOCATION =a.PHYSICAL_NAME,
FILESIZE_MB = CONVERT(DECIMAL(10,2),A.SIZE/128.0),
USEDSPACE_MB = CONVERT(DECIMAL(10,2),(A.SIZE/128.0 - ((A.SIZE - CAST(FILEPROPERTY(A.NAME,''SPACEUSED'') AS INT))/128.0))),
FREESPACE_MB = CONVERT(DECIMAL(10,2),(A.SIZE/128.0 - CAST(FILEPROPERTY(A.NAME,''SPACEUSED'') AS INT)/128.0)),
AUTOGROW_STATUS = ''BY '' +CASE is_percent_growth when 0 then cast (growth/128 as varchar(10))+ '' MB - ''
when 1 then cast (growth as varchar(10)) + ''% - '' ELSE '''' END
+ CASE MAX_SIZE WHEN 0 THEN '' DISABLED ''
WHEN -1 THEN '' UNRESTRICTED''
ELSE '' RESTRICTED TO '' + CAST(MAX_SIZE/(128*1024) AS VARCHAR(10)) + '' GB '' END
+ CASE IS_PERCENT_GROWTH WHEn 1 then '' [autogrowth by percent]'' else '''' end
from sys.database_files A
left join sys.filegroups fg on a.data_space_id = fg.data_space_id
order by A.type desc,A.name
;
'
--print @sql
EXEC sp_MSforeachdb @SQL
go
SELECT dbSize.*,fg.*,d.log_reuse_wait_desc,d.recovery_model_desc
FROM #tempFileInformation fg
LEFT JOIN sys.databases d on fg.DBNAME = d.name
CROSS APPLY
(
select dbname,
sum(FILESIZE_MB) as [totalDBSize_MB],
sum(FREESPACE_MB) as [DB_Free_Space_Size_MB],
sum(USEDSPACE_MB) as [DB_Used_Space_Size_MB]
from #tempFileInformation
where dbname = fg.dbname
group by dbname
)dbSize
go
DROP TABLE #tempFileInformation
只需加我2美分。
如果专门寻找仅在所有数据库中的数据文件中或仅在日志文件中查找总可用空间,则可以使用“ data_space_id”列。1是数据文件,0是日志文件。
码:
Create Table ##temp
(
DatabaseName sysname,
Name sysname,
spacetype sysname,
physical_name nvarchar(500),
size decimal (18,2),
FreeSpace decimal (18,2)
)
Exec sp_msforeachdb '
Use [?];
Insert Into ##temp (DatabaseName, Name,spacetype, physical_name, Size, FreeSpace)
Select DB_NAME() AS [DatabaseName], Name, ***data_space_id*** , physical_name,
Cast(Cast(Round(cast(size as decimal) * 8.0/1024.0,2) as decimal(18,2))/1024 as nvarchar) SizeGB,
Cast(Cast(Round(cast(size as decimal) * 8.0/1024.0,2)/1024 as decimal(18,2)) -
Cast(FILEPROPERTY(name, ''SpaceUsed'') * 8.0/1024.0 as decimal(18,2))/1024 as nvarchar) As FreeSpaceGB
From sys.database_files'
select
databasename
, sum(##temp.FreeSpace)
from
##temp
where
##temp.spacetype = 1
group by
DatabaseName
drop table ##temp
如果重命名数据库,则MS SQL Server不会重命名基础文件。
以下查询为您提供数据库的当前名称和逻辑文件名(它可能是创建数据库时的原始名称)以及相应的物理文件名。
注意:取消注释最后一行以仅查看实际数据文件
select db.database_id,
db.name "Database Name",
files.name "Logical File Name",
files.physical_name
from sys.master_files files
join sys.databases db on db.database_id = files.database_id
-- and files.type_desc = 'ROWS'
参考: