SQL数据库自动备份作业脚本

– 创建文件名
declare @filename varchar(1024)
declare @path varchar(1024)
declare @dbName nvarchar(50)

set @dbName=’UniDataPark’;
set @path = N’D:\GHY\BackUp\’;

declare @extension_name varchar(16)

set @filename = convert(varchar(1024), getdate(), 23)
set @filename = replace(@filename, ‘:’, ”)
set @filename = replace(@filename, ‘-‘, ”)
set @filename = replace(@filename, ’ ‘, ”)
set @filename =@dbName + N’_’ + @filename + N’.bak’
–set @filename = @filename + ‘_’ + convert (varchar(3), datepart(ms, getdate())) + N’.’ + @extension_name
– 得到完整目标文件，数据库将备份到这个中
set @filename = @path + @filename
–select @filename

– 开始备份, MYDB 是需要备份的数据库, COMPRESSION 参数表示压缩，可节省磁盘空间
backup database @dbName to disk = @filename with noformat, noinit, name = N’MYDB-完整 数据库 备份’, skip, norewind, nounload, stats = 10, COMPRESSION

– 删除15天前的备份文件
declare @olddate datetime
select @olddate=getdate()-15
– 执行删除 (SQL 2008 具备)
execute master.dbo.xp_delete_file 0, @path, ‘bak’, @olddate, 1
go