是否可以列出有关SQL Server上所有数据库的文件（MDF / LDF）的信息？
我想获得一个列表，显示哪个数据库正在使用本地磁盘上的哪些文件。
我尝试了什么：
exec sp_databases所有数据库select * from sys.databases显示了有关每个数据库的大量信息 - 但遗憾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答案 0 :(得分：102)
您可以使用sys.master_files。
包含存储在主服务器中的每个数据库文件的行 数据库。这是一个单一的系统范围的视图。
答案 1 :(得分：68)
如果您想获取数据库的位置，可以查看Get All DBs Location
您可以使用sys.master_files获取db的位置，使用sys.databse获取db name
SELECT
db.name AS DBName,
type_desc AS FileType,
Physical_Name AS Location
FROM
sys.master_files mf
INNER JOIN
sys.databases db ON db.database_id = mf.database_id
答案 2 :(得分：14)
我使用脚本在每个文件中获取空白区域：
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。
答案 3 :(得分：3)
执行以下sql（只有在同一个数据库没有多个mdf / ldf文件时才会起作用）
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
和其他数据库
如果你的TempDB有多个MDF（就像我的那样），这个脚本就会失败。 但是，您可以使用
WHERE db.database_id > 4
最后，它将返回除系统数据库之外的所有数据库。
答案 4 :(得分：3)
您也可以试试这个。
select db_name(dbid) dbname, filename from sys.sysaltfiles
答案 5 :(得分：3)
我创建了以下查询：
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
答案 6 :(得分：1)
此脚本列出了您要查找的大部分内容，并且可以根据您的需要进行修改。请注意，它正在那里创建一个永久表 - 您可能想要更改它。它是较大脚本的一个子集，它还汇总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]
答案 7 :(得分：1)
使用此脚本，您可以显示所有使用的数据库名称和文件（系统dbs除外）。 使用 master 数据库
执行它select name,physical_name from sys.master_files where database_id > 4
答案 8 :(得分：0)
如果在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
答案 9 :(得分：0)
下面的脚本可用于获取以下信息： 1.数据库大小信息 2. FileSpaceInfo 3.自动增长 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
答案 10 :(得分：0)
只加我的2美分。
如果专门希望仅在所有数据库的数据文件或日志文件中查找总可用空间，则可以使用“ data_space_id”列。 1用于数据文件，0用于日志文件。
代码：
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
答案 11 :(得分：0)
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（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：
答案 12 :(得分：0)
使用 sp_MSForEachDB 存储过程是一种选择
EXEC sp_MSForEachDB 'use ? select * from sys.database_files'
另外只查看完整路径名称和大小信息
EXEC sp_MSForEachDB '
USE [?];
SELECT DB_NAME() AS DbName,
physical_name AS FullPath,
name AS FileName,
type_desc,
size/128.0 AS CurrentSizeMB,
size/128.0 - CAST(FILEPROPERTY(name, ''SpaceUsed'') AS INT)/128.0 AS FreeSpaceMB
FROM sys.database_files
WHERE type IN (0,1);
'
答案 13 :(得分：-3)
您可以使用以下内容：
SP_HELPDB [Master]
GO