备份数据库SQL Server 2008下实测

下面的存储过程适用：

1.一次想备份多个数据库。

2.只需要一步操作，在有存储过程的条件下。

3.可以根据自己的需要修改存储过程。

 

/*-----------------------------

	Description:

		1.Backup multiple Database

		2.If you want to backup database except 'master\model\msdb\tempdb',you can input '%' of the second parameter

		3.parameter 1 is the path where you want to back,parameter 2 is the database name you want to backup

		3.This procedure backup database with fuzzy database name

		

	Author:jiangxiaoqiang

	Date:2013-09-27

	Modify history:

-----------------------------*/









ALTER procedure [dbo].[sp_BackupDBBatch]

	@backup_path varchar(200),

	@backup_name varchar(200)

as

begin

	declare @DynamicSQL varchar(256)

	set @DynamicSQL='if not exist '+@backup_path+'\%Date:~0,4%%Date:~5,2%%Date:~8,2% mkdir '+@backup_path+'\%Date:~0,4%%Date:~5,2%%Date:~8,2%'

	exec xp_cmdshell @DynamicSQL

	

	declare @backup_path_detail varchar(200)

	set @backup_path_detail=@backup_path+'\'+CONVERT(char(8),GETDATE(),112)

	--declare variable

	DECLARE @dbname nvarchar(200)

	--SET @backup_path='D:\DatabaseBackup'--you can define by yourself

	/*

	 declare cursor syntax

	 DECLARE cursor_name CURSOR 

	 [LOCAL | GLOBAL] 

	 [FORWARD_ONLY | SCROLL] 

	 [STATIC | KEYSET | DYNAMIC | FAST_FORWARD] 

	 [READ_ONLY | SCROLL_LOCKS | OPTIMISTIC] 

	 [TYPE_WARNING] 

	 FOR select_statement 

	 [FOR UPDATE [OF column_name [,...n]]] 

	*/

	DECLARE db_info CURSOR --declare cursor

	LOCAL

	STATIC

	READ_ONLY

	FORWARD_ONLY

	FOR --add other condition by select

    SELECT name

    FROM master.sys.databases with(NOLOCK)

    WHERE database_id>4 and name like '%'+@backup_name+'%'--maser,model,msdb,tempdb

	 --here you can add the condition like:name like'NJPEC%'

    OPEN db_info --open cursor

    FETCH NEXT FROM db_info INTO @dbname

   

    WHILE @@FETCH_STATUS=0

    BEGIN

	 EXEC master.dbo.backupDB @dbname,@backup_path_detail

	 FETCH NEXT FROM db_info INTO @dbname

    END

    CLOSE db_info

    DEALLOCATE db_info

---------------------------END--------------------------------

   --Find&list all database

   /*

    select * 

    from master.sys.databases

    order by database_id;

   */

end

 

ALTER PROC [dbo].[backupDB] 

(

  --We'd better add bracket even if no parameters

  @DatabaseName nvarchar(200), 

  @Path nvarchar(200)

)

AS

BEGIN

 DECLARE @FileName varchar(200),@sql varchar(1000)

 --RIGHT function:return the @Path last X word

 --CONVERT function:CONVERT(data_type(length),data_to_be_converted,style)

 --112 representative yymmdd format

 --108 representative hh:mm:ss format

  SET @FileName=@Path+(CASE WHEN RIGHT(@Path,1)<>'\' THEN '\' ELSE '' END)

           +@DatabaseName+'_'+CONVERT(char(8),GETDATE(),112)+'_' 

           +replace(convert(char(8),getdate(),108),':','')+'.bak'

  --to explain the ''':the ' before to and the last ' was a couple.

  --the backup folder must be exists,and N must be uppercase.

  --what's the 'N' meaning?It means the varible using code with unicode.

  SET @sql='backup database '+@DatabaseName+' to disk =N'''+@FileName+''''

  EXEC(@sql)

 END

 数据非常重要，本脚本为学习交流用，正式数据库还请制定详细备份解决方案，欢迎大家提出改进意见。