如何仅通过dbName和物理路径恢复SQL Server数据库

Question

我有几个数据库备份，我想将它们全部还原到服务器。

有人可以用 SQL 脚本指出我正确的方向，将逻辑文件名修改为正确的路径，而不是数据库中的文件名吗？

Restore FILELISTONLY FROM DISK='E:\New folder\Thursday - DB_Order.bak'

RESTORE DATABASE Business_Data_TSQL
FROM DISK='E:\New folder\Thursday - DB_Order.bak'
WITH
MOVE 'DBOrder_Data' TO 'E:\New folder\Business_Data.mdf',
MOVE 'DBOrder_Log' TO 'E:\New folder\Business_Data_log.ldf'

使用查询 1 我得到逻辑名称，然后需要为查询 2 手动设置这些名称，但是当有多个数据库时这真的很困难。

请帮我写一个脚本，我只传递备份文件的物理路径和新的数据库名称，然后恢复该数据库。

如果有任何问题，请提问。提前致谢。

Answer 1

这是您可以使用的东西。它不是完全自动化的，但这绝对是非常有用的脚本。

SET NOCOUNT ON;

DECLARE 
    @DBName NVarchar(100),
    @BackupFile NVarchar(1000),
    @DeviceFrom NVarchar(1000),
    @DeviceTo NVarchar(1000),
    @LogicalName NVarchar(1000),
    @PhysicalName NVarchar(1000),
    @SQL NVarchar(MAX),
    @RowsToProcess integer,
    @CurrentRow integer,
    @Comma NVarchar(25);

SET @DBName = 'DB_Order'; --  Change this for each database
SET @BackupFile = 'E:\New folder\Thursday - DB_Order.bak'; --  Change this for each database

SELECT @DeviceFrom = SUBSTRING(physical_name, 1,
CHARINDEX(@DBName + '.mdf',
physical_name) - 1) 
FROM master.sys.master_files
WHERE name = @DBName AND FILE_ID = 1;

SET @DeviceTo = 'E:\New folder\'; -- Change this if you are changing your restore location
SET @SQL = 'RESTORE DATABASE ' + @DBName + ' FROM DISK = ''' + @BackupFile + ''' WITH ';
SET @CurrentRow = 0;
SET @Comma = ',';

DECLARE @FileList TABLE (
    RowID int not null primary key identity(1,1)
    ,LogicalName NVARCHAR(128) 
    ,PhysicalName NVARCHAR(260) 
    ,Type CHAR(1) 
    ,FileGroupName NVARCHAR(128) 
    ,Size numeric(20,0) 
    ,MaxSize numeric(20,0) 
    ,FileId BIGINT 
    ,CreateLSN numeric(25,0) 
    ,DropLSN numeric(25,0) 
    ,UniqueId uniqueidentifier 
    ,ReadOnlyLSN numeric(25,0) 
    ,ReadWriteLSN numeric(25,0) 
    ,BackupSizeInBytes BIGINT 
    ,SourceBlockSize BIGINT 
    ,FilegroupId BIGINT 
    ,LogGroupGUID uniqueidentifier 
    ,DifferentialBaseLSN numeric(25) 
    ,DifferentialBaseGUID uniqueidentifier 
    ,IsReadOnly BIGINT 
    ,IsPresent BIGINT
    ,TDEThumbprint VARBINARY(32) -- Remove this line for SQL Server 2005
    );

INSERT INTO @FileList
EXEC('RESTORE FILELISTONLY FROM DISK = ''' + @BackupFile + '''')
SET @RowsToProcess = @@RowCount;

WHILE @CurrentRow < @RowsToProcess
BEGIN
    SET @CurrentRow= @CurrentRow + 1;
    BEGIN
    IF @CurrentRow = @RowsToProcess
        SET @Comma = ',STATS=1';
    END
    SELECT @LogicalName = LogicalName,@PhysicalName = PhysicalName FROM @FileList WHERE RowID=@CurrentRow;
    SET @PhysicalName = Replace(@PhysicalName,@DeviceFrom,@DeviceTo);
    SET @SQL = @SQL + 'MOVE ''' + @LogicalName + ''' TO ''' + @PhysicalName + '''' + @Comma + '';
END

SELECT @SQL;
--EXEC(@SQL); -- Execute when you are ready.

您可以使用SQLCMD /批处理文件传入数据库名称和物理文件名的参数，并尝试自动化它。