批量恢复数据库

USE Master;
GO
SET NOCOUNT ON
-- 1 - Variable declaratioN
DECLARE @dbName sysname
DECLARE @backupPath NVARCHAR(500)
DECLARE @cmd NVARCHAR(500)
DECLARE @fileList TABLE (backupFile NVARCHAR(255))
DECLARE @lastFullBackup NVARCHAR(500)
DECLARE @lastDiffBackup NVARCHAR(500)
DECLARE @backupFile NVARCHAR(500)
-- 2 - Initialize variables
SET @dbName = 'dddd'
SET @backupPath = 'c:\'
-- 3 - get list of files
SET @cmd = 'DIR /b ' + @backupPath
INSERT INTO @fileList(backupFile)
EXEC master.sys.xp_cmdshell @cmd
-- 4 - Find latest full backup
SELECT @lastFullBackup = MAX(backupFile)
FROM @fileList
WHERE backupFile LIKE '%.BAK'
SET @cmd = 'RESTORE DATABASE ' + @dbName + ' FROM DISK = '''
+ @backupPath + @lastFullBackup + ''' WITH NORECOVERY, REPLACE'
PRINT @cmd
-- 4 - Find latest diff backup
SELECT @lastDiffBackup = MAX(backupFile)
FROM @fileList
WHERE backupFile LIKE '%.DIF'
AND backupFile > @lastFullBackup
-- check to make sure there is a diff backup
IF @lastDiffBackup IS NOT NULL
BEGIN
SET @cmd = 'RESTORE DATABASE ' + @dbName + ' FROM DISK = '''
+ @backupPath + @lastDiffBackup + ''' WITH NORECOVERY'
PRINT @cmd
SET @lastFullBackup = @lastDiffBackup
END
-- 5 - check for log backups
DECLARE backupFiles CURSOR FOR
SELECT backupFile
FROM @fileList
WHERE backupFile LIKE '%.TRN'
AND backupFile > @lastFullBackup
OPEN backupFiles
-- Loop through all the files for the database
FETCH NEXT FROM backupFiles INTO @backupFile
WHILE @@FETCH_STATUS = 0
BEGIN
SET @cmd = 'RESTORE LOG ' + @dbName + ' FROM DISK = '''
+ @backupPath + @backupFile + ''' WITH NORECOVERY'
PRINT @cmd
FETCH NEXT FROM backupFiles INTO @backupFile
END
CLOSE backupFiles
DEALLOCATE backupFiles
-- 6 - put database in a useable state
SET @cmd = 'RESTORE DATABASE ' + @dbName + ' WITH RECOVERY'
PRINT @cmd