----------------------------------------------备份数据库-----------------------------------------------------------------------
USE [master]
GO
ALTER DATABASE [TEST] SET RECOVERY SIMPLE WITH NO_WAIT    --简单

USE [TEST]
go
DBCC SHRINKFILE (N'Leader_Log' , 0, TRUNCATEONLY)    --缩日志

USE [master]
GO
ALTER DATABASE [TEST] SET RECOVERY FULL WITH NO_WAIT   --完整

declare 
@RiQi varchar(6),
@LuJing varchar(200),
@Path varchar(200)
set @Path = '\\DC01\Buckups$\'  --用镜像账号网络共享存储
set @RiQi = (select CONVERT(varchar(4),DATEPART(YEAR,getdate())) + CONVERT(varchar(2),DATEPART(mm,getdate())))
set @LuJing = @Path  + @RiQi + 'TEST.bak'
backup database TEST to disk=@LuJing  with init 

declare 
@RiQi varchar(6),
@LuJing varchar(200),
@Path varchar(200)
set @Path = '\\DC01\Buckups$\'
set @RiQi = (select CONVERT(varchar(4),DATEPART(YEAR,getdate())) + CONVERT(varchar(2),DATEPART(mm,getdate())))
set @LuJing = @Path + @RiQi + 'TEST.bak'
backup log TEST to disk=@LuJing

-----------------------------------------------查看备份文件--------------------------------------------------------------------------------------

restore headeronly from  disk='\\DC01\Buckups$\20183TEST.bak'

-----------------------------------------------还原数据库----------------------------------------------------------------------

restore database TEST from  disk='\\DC01\Buckups$\TEST.bak' with file=1,replace,norecovery  --第一个完整还原
restore log TEST from  disk='\\DC01\Buckups$\20183TEST.bak' with file=2,replace,norecovery --第二个日志还原
restore log TEST from  disk='\\DC01\Buckups$\20183TEST.bak' with file=3,replace,norecovery --第三个日志还原
restore log TEST from  disk='\\DC01\Buckups$\20183TEST.bak' with file=4,replace,recovery     --最后一个日志还原

新闻名称：SQL按月备份与还原
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