Question

我正在研究如何Restore Database Backup using SQL Script (T-SQL)的步骤。以下是步骤：

数据库YourDB具有完整备份YourBackUpFile.bak。可以使用以下两个步骤恢复它：

步骤1：从备份中检索数据库的逻辑文件名。
RESTORE FILELISTONLY
FROM DISK = 'D:BackUpYourBackUpFile.bak'
GO
第2步：使用以下步骤中LogicalName列中的值。
----Make Database to single user Mode
ALTER DATABASE YourDB
SET SINGLE_USER WITH
ROLLBACK IMMEDIATE

----Restore Database
RESTORE DATABASE YourDB
FROM DISK = 'D:BackUpYourBackUpFile.bak'
WITH MOVE 'YourMDFLogicalName' TO 'D:DataYourMDFFile.mdf',
MOVE 'YourLDFLogicalName' TO 'D:DataYourLDFFile.ldf'

我遇到了如何获取YourMDFLogicalName和YourLDFLogicalName的问题。任何人都可以帮助我吗？

Answer 1

DECLARE @Table TABLE (LogicalName varchar(128),[PhysicalName] varchar(128), [Type] varchar, [FileGroupName] varchar(128), [Size] varchar(128), 
            [MaxSize] varchar(128), [FileId]varchar(128), [CreateLSN]varchar(128), [DropLSN]varchar(128), [UniqueId]varchar(128), [ReadOnlyLSN]varchar(128), [ReadWriteLSN]varchar(128), 
            [BackupSizeInBytes]varchar(128), [SourceBlockSize]varchar(128), [FileGroupId]varchar(128), [LogGroupGUID]varchar(128), [DifferentialBaseLSN]varchar(128), [DifferentialBaseGUID]varchar(128), [IsReadOnly]varchar(128), [IsPresent]varchar(128), [TDEThumbprint]varchar(128)
)
DECLARE @Path varchar(1000)='C:\SomePath\Base.bak'
DECLARE @LogicalNameData varchar(128),@LogicalNameLog varchar(128)
INSERT INTO @table
EXEC('
RESTORE FILELISTONLY 
   FROM DISK=''' +@Path+ '''
   ')

   SET @LogicalNameData=(SELECT LogicalName FROM @Table WHERE Type='D')
   SET @LogicalNameLog=(SELECT LogicalName FROM @Table WHERE Type='L')

SELECT @LogicalNameData,@LogicalNameLog

<强>更新

根据Microsoft site：

SQL Server文件有两个名称：

logical_file_name

logical_file_name是用于引用物理文件的名称   在所有Transact-SQL语句中。逻辑文件名必须符合   SQL Server标识符的规则，在逻辑上必须是唯一的   数据库中的文件名。

则os_file_name

os_file_name是包含的物理文件的名称   目录路径。它必须遵循操作系统文件的规则   名。

Answer 2

logical_file_name：是引用该文件时Microsoft SQL Server中使用的名称。该名称在数据库中必须是唯一的，并且符合标识符规则。名称可以是字符或Unicode常量，常规标识符或分隔标识符。

来自：http://msdn.microsoft.com/en-us/library/aa275464(v=sql.80).aspx

另外，从Dalex的脚本中，您可以运行（没有所有表逻辑）：

RESTORE FILELISTONLY FROM DISK = 'D:\MyBackups\Backup.bak'

Answer 3

如果您有原始数据库（从中获取备份文件），则获取其逻辑名称的最简单方法是：

use [original_db]
go
select file_name(1)
go

或使用一个T-SQL

> sqlcmd [connection parameters and credentials] -d [original_db] -Q "set nocount on; select file_name(1)" -h-1 -W

这将与您在RESTORE命令中使用的logical_name相同。

Answer 4

DECLARE @Path VARCHAR(1000)= N'C:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\Backup\aaa.bak',
        @RestorePath NVARCHAR(max)='C:\'

DECLARE @Table TABLE
    (
      LogicalName VARCHAR(128) ,
      [PhysicalName] VARCHAR(128) ,
      [Type] VARCHAR ,
      [FileGroupName] VARCHAR(128) ,
      [Size] VARCHAR(128) ,
      [MaxSize] VARCHAR(128) ,
      [FileId] VARCHAR(128) ,
      [CreateLSN] VARCHAR(128) ,
      [DropLSN] VARCHAR(128) ,
      [UniqueId] VARCHAR(128) ,
      [ReadOnlyLSN] VARCHAR(128) ,
      [ReadWriteLSN] VARCHAR(128) ,
      [BackupSizeInBytes] VARCHAR(128) ,
      [SourceBlockSize] VARCHAR(128) ,
      [FileGroupId] VARCHAR(128) ,
      [LogGroupGUID] VARCHAR(128) ,
      [DifferentialBaseLSN] VARCHAR(128) ,
      [DifferentialBaseGUID] VARCHAR(128) ,
      [IsReadOnly] VARCHAR(128) ,
      [IsPresent] VARCHAR(128) ,
      [TDEThumbprint] VARCHAR(128)
    )

DECLARE @LogicalNameData VARCHAR(128) ,
    @LogicalNameLog VARCHAR(128)
INSERT  INTO @table
        EXEC ( '
RESTORE FILELISTONLY 
   FROM DISK=''' + @Path + '''
   '
            )

DECLARE @restoreScript NVARCHAR(max)='RESTORE DATABASE [aaa] FROM DISK =''' + @Path + ''' WITH FILE = 1 '

SELECT  @restoreScript +=CHAR(10) + ' ,MOVE  ''' +  LogicalName + ''' TO ''' + 
        @RestorePath  + LogicalName + RIGHT(PhysicalName,4) + ''''
                         FROM   @Table
                         WHERE  Type = 'D'

 SELECT  @restoreScript += ' ,MOVE  ''' +  LogicalName + ''' TO ''' + @RestorePath  + LogicalName + '.ldf'''
                        FROM    @Table
                        WHERE   Type = 'L'

SET @restoreScript += ' , NOUNLOAD, REPLACE, STATS = 10 '
SELECT  @restoreScript

Answer 5

更新了脚本版本：

DECLARE @Table TABLE (
    LogicalName varchar(128),
    [PhysicalName] varchar(128), 
    [Type] varchar, 
    [FileGroupName] varchar(128), 
    [Size] varchar(128),
    [MaxSize] varchar(128), 
    [FileId]varchar(128), 
    [CreateLSN]varchar(128), 
    [DropLSN]varchar(128), 
    [UniqueId]varchar(128), 
    [ReadOnlyLSN]varchar(128), 
    [ReadWriteLSN]varchar(128),
    [BackupSizeInBytes]varchar(128), 
    [SourceBlockSize]varchar(128), 
    [FileGroupId]varchar(128), 
    [LogGroupGUID]varchar(128), 
    [DifferentialBaseLSN]varchar(128), 
    [DifferentialBaseGUID]varchar(128), 
    [IsReadOnly]varchar(128), 
    [IsPresent]varchar(128), 
    [TDEThumbprint]varchar(128),
    [SnapshotUrl]varchar(128)
)
DECLARE @Path varchar(1000)='/path/to/backup.bak'
DECLARE @LogicalNameData varchar(128),@LogicalNameLog varchar(128)
INSERT INTO @table
EXEC('
RESTORE FILELISTONLY
   FROM DISK=''' +@Path+ '''
   ')

   SET @LogicalNameData=(SELECT LogicalName FROM @Table WHERE Type='D')
   SET @LogicalNameLog=(SELECT LogicalName FROM @Table WHERE Type='L')

SELECT @LogicalNameData,@LogicalNameLog

Answer 6

如果您手动进行更改，则可以通过以下查询找到相应的名称：

SELECT db.name AS [DB Name], mf.name AS [Full logical name],
CASE
  WHEN CHARINDEX('_', mf.name) > 0 THEN LEFT (mf.name, CHARINDEX('_', mf.name)-1)
  ELSE mf.name
END AS [Shortened logical name]
FROM sys.master_files mf
INNER JOIN sys.databases db ON db.database_id = mf.database_id
WHERE mf.type_desc != 'LOG'
ORDER BY db.name;

如何从备份文件中检索数据库的逻辑文件名

6 个答案: