sqlserver2008R2数据库自动备份脚本

 CREATE proc [dbo].[usp_autoBackupDB]
 @dbname sysname=null --要备份的数据库名，不指定即为全部备份
 ,@path nvarchar(128)='d:\' --备份目录路径
 ,@backup_type varchar(16)='database' --备份类型，可以为database,log
 ,@backup_sysdb int=0 --是否备份系统数据库，0为不备份，1为备份
 as
 set nocount on;

 declare @dbcnt int =0
 ,@sql varchar(2000)=''
 ,@except_db varchar(1000)=case @backup_sysdb
 when 0 then ''''+'master'+''''+','+'''' +'msdb'+''''+','+''''+'tempdb'+''''+','+''''+'model'+''''
 when 1 then '' end;
 declare @db_list table(id int identity(1,1) not null,name sysname);
 declare @backup_err_list table(id int identity(1,1) not null,name sysname);
  if right(@path,1)<>'\'
 set @path=@path+'\'

 if @dbname is null or @dbname in ('all','*')
 begin
 --将所有数据库名存到一张临时表上
 set @sql='select name from sys.databases where name not in ('+@except_db+');'
 insert into @db_list(name) exec(@sql);

 --得到一共有多少个数据库
 select @dbcnt=count(1) from @db_list;
 --开始循环
 while @dbcnt>0
 begin
 --从临时表中获得最后一个数据库的名字
 select @dbname=name from @db_list where id=@dbcnt;
 set @sql='backup '+@backup_type+' '+@dbname+' to disk='+''''+@path+@backup_type+'_'+@dbname+'.'+convert(varchar(8),getdate(),112)+'.'+DATENAME(HH,GETDATE())+''''
 --开始循环备份
 exec (@sql);
 if @@ERROR<>0
 insert into @backup_err_list(name) values(@dbname);
 set @dbcnt=@dbcnt-1
 end
 end
 else
 begin
 set @sql='backup '+@backup_type+' '+@dbname+' to disk='+''''+@path+@backup_type+'_'+@dbname+'.'+convert(varchar(8),getdate(),112)+'.'+DATENAME(HH,GETDATE())+''''
 --仅备份一次
 exec (@sql);
 if @@ERROR<>0
 insert into @backup_err_list(name) values(@dbname);

 end
 if exists(select * from @backup_err_list)
 select ID ,name as 'backup_err_dbname' from @backup_err_list;
 else print 'backup success';

 set nocount off;

 GO