SQL SERVER 数据库备份代码实例_MsSql_

 /** 批量循环备份用户数据库，做为数据库迁移临时用 */ SET NOCOUNT ON DECLARE @d varchar(8) DECLARE @Backup_Flag NVARCHAR(10) SET @d=convert(varchar(8),getdate(),112) /***自定义选择备份哪些数据库****/ --SET @Backup_Flag='UserDB' -- 所用的用户数据库 SET @Backup_Flag='AlwaysOnDB' -- AlwaysOn 用户数据库 CREATE TABLE #T (ID INT NOT NULL IDENTITY(1,1),SQLBak NVARCHAR(MAX) NOT NULL) IF @Backup_Flag='UserDB' BEGIN INSERT INTO #T (SQLBak) SELECT 'BACKUP DATABASE [' + name + '] TO DISK=''E:\Backup\' + NAME + '_Full_'+@d+'.bak'' WITH CHECKSUM,NOFORMAT,INIT,SKIP,COMPRESSION' AS 'SQLBak' FROM sys.databases WHERE database_id>4 END IF @Backup_Flag='AlwaysOnDB' BEGIN INSERT INTO #T (SQLBak) SELECT 'BACKUP DATABASE [' + database_name + '] TO DISK=''E:\Backup\' + database_name + '_Full_'+@d+'.bak'' WITH CHECKSUM,NOFORMAT,INIT,SKIP,COMPRESSION' AS 'SQLBak' FROM sys.availability_databases_cluster END DECLARE @Minid INT , @Maxid INT , @sql VARCHAR(max) SELECT @Minid = MIN(id) , @Maxid = MAX(id) FROM #T PRINT N'--打印备份脚本..........' WHILE @Minid <= @Maxid BEGIN SELECT @sql = SQLBak FROM #T WHERE id = @Minid ----exec (@sql) PRINT ( @sql ) SET @Minid = @Minid + 1 END DROP TABLE #T