Technical Article

Restore multiple db's to new server with new file locations

,

We're upgrading our SQL Server soon and the new server does not have the same disk layout as the old one. There's over 80 db's to move, so figured a script that would get the last backup file taken of the db and grab the logical file names from the sysfiles table on each of the db's would make the task easier and print the full restore statement for each db would be quicker than individual restores. It's not perfect, but it did the trick for me.

Regards

-- Script to produce T-SQL that will restore multiple db's from latest backup set ...
SET NOCOUNT ON
GO


DECLARE @datafile VARCHAR(500)
DECLARE @logfile VARCHAR(500)
DECLARE @dbs TABLE
    (
      Id INT IDENTITY(1, 1) ,
      DBName VARCHAR(255)
    )
INSERT  INTO @dbs
        ( DBName )
        SELECT  name
        FROM    sys.databases

DECLARE @DBCount INT ,
    @Loop INT = 1 ,
    @CurrentDB VARCHAR(255) ,
    @DeviceName VARCHAR(500)
SELECT  @DBCount = COUNT(*)
FROM    @dbs
WHILE @Loop <= @DBCount 
    BEGIN

        SELECT  @CurrentDB = DBName
        FROM    @dbs
        WHERE   Id = @Loop


        SELECT  @DeviceName = MaxDeviceName
        FROM    ( SELECT    database_name ,
                            MAX(physical_device_name) AS MaxDeviceName ,
                            MAX(backup_start_date) AS MaxBackupDate
                  FROM      msdb.dbo.backupmediafamily A
                            JOIN msdb.dbo.backupset B ON A.media_set_id = B.media_set_id
                  GROUP BY  database_name ,
                            physical_device_name
                ) A
                JOIN ( SELECT   database_name ,
                                MAX(backup_start_date) AS MaxBackupDate
                       FROM     msdb.dbo.backupmediafamily A
                                JOIN msdb.dbo.backupset B ON A.media_set_id = B.media_set_id
                       GROUP BY database_name
                     ) B ON A.database_name = B.database_name
                            AND A.MaxBackupDate = B.MaxBackupDate
                JOIN sys.databases C ON A.database_name = C.name
                                        AND C.name = @CurrentDB
        PRINT CHAR(13) + 'RESTORE DATABASE [' + @CurrentDB + '] FROM DISK = ''' + @DeviceName + ''' WITH STATS '
       
        DECLARE @logicalfilename NVARCHAR(255) ,
            @filename NVARCHAR(255) ,
            @Count1 INT = 0 ,
            @Count2 INT = 0 ,
            @Count3 INT = 0 ,
            @NewLocation NVARCHAR(500) = 'C:\Program Files\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQL\DATA\'
        DECLARE @Str NVARCHAR(MAX)
-- MDF's        

        SELECT  @Str = 'SELECT @outcnt = Count(*), @outlogicalfilename = name, @outfilename = RIGHT(''\''+filename, CHARINDEX(''\'', REVERSE(''\''+filename))-1) FROM ['
                + @CurrentDB + '].dbo.sysfiles Where filename like ''%.mdf'' GROUP BY name, filename'
        EXEC sp_executesql @Str, N'@outlogicalfilename nvarchar(255) OUTPUT, @outfilename nvarchar(255) OUTPUT, @outcnt int OUTPUT',
            @outlogicalfilename = @logicalfilename OUTPUT, @outfilename = @filename OUTPUT, @outcnt = @Count1 OUTPUT
        DECLARE @MoveMDFs NVARCHAR(500)
        SET @MoveMDFs = ', MOVE ''' + @logicalfilename + ''' TO ''' + @NewLocation + @filename + ''''
        IF @Count1 > 0 
            BEGIN
                PRINT @MoveMDFs
            END
--NDF's
        SELECT  @Str = 'SELECT @outcnt = Count(*),  @outlogicalfilename = name, @outfilename = RIGHT(''\''+filename, CHARINDEX(''\'', REVERSE(''\''+filename))-1) FROM ['
                + @CurrentDB + '].dbo.sysfiles Where filename like ''%.ndf'' GROUP BY name, filename'
        EXEC sp_executesql @Str, N'@outlogicalfilename nvarchar(255) OUTPUT, @outfilename nvarchar(255) OUTPUT, @outcnt int OUTPUT',
            @outlogicalfilename = @logicalfilename OUTPUT, @outfilename = @filename OUTPUT, @outcnt = @Count2 OUTPUT
        DECLARE @MoveNDFs NVARCHAR(500)
        SET @MoveNDFs = ', MOVE ''' + @logicalfilename + ''' TO ''' + @NewLocation + @filename + ''''
        IF @Count2 > 0 
            BEGIN
                PRINT @MoveNDFs
            END
--LDF's
        SELECT  @Str = 'SELECT @outcnt = Count(*),  @outlogicalfilename = name, @outfilename = RIGHT(''\''+filename, CHARINDEX(''\'', REVERSE(''\''+filename))-1) FROM ['
                + @CurrentDB + '].dbo.sysfiles Where filename like ''%.ldf'' GROUP BY name, filename'
        EXEC sp_executesql @Str, N'@outlogicalfilename nvarchar(255) OUTPUT, @outfilename nvarchar(255) OUTPUT, @outcnt int OUTPUT',
            @outlogicalfilename = @logicalfilename OUTPUT, @outfilename = @filename OUTPUT, @outcnt = @Count3 OUTPUT
        DECLARE @MoveLDFs NVARCHAR(500)
        SET @MoveLDFs = ', MOVE ''' + @logicalfilename + ''' TO ''' + @NewLocation + @filename + ''''
        IF @Count3 > 0 
            BEGIN
                PRINT @MoveLDFs
            END    
        SET @Loop = @Loop + 1
    END

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