sql自动备份数据库脚本

BEGIN TRANSACTION
DECLARE @JobID BINARY(16)
DECLARE @ReturnCode INT
SELECT @ReturnCode = 0
IF (SELECT COUNT(*) FROM msdb.dbo.syscategories WHERE name = N'Database Maintenance') < 1
EXECUTE msdb.dbo.sp_add_category @name = N'Database Maintenance'

-- 删除同名的警报（如果有的话）。
SELECT @JobID = job_id
FROM msdb.dbo.sysjobs
WHERE (name = N'eoooc备份')
IF (@JobID IS NOT NULL)
BEGIN
-- 检查此作业是否为多重服务器作业
IF (EXISTS (SELECT *
FROM msdb.dbo.sysjobservers
WHERE (job_id = @JobID) AND (server_id <> 0)))
BEGIN
-- 已经存在，因而终止脚本
RAISERROR (N'无法导入作业“eoooc备份”，因为已经有相同名称的多重服务器作业。', 16, 1)
GOTO QuitWithRollback
END
ELSE
-- 删除［本地］作业
EXECUTE msdb.dbo.sp_delete_job @job_name = N'eoooc备份'
SELECT @JobID = NULL
END

BEGIN

-- 添加作业
EXECUTE @ReturnCode = msdb.dbo.sp_add_job @job_id = @JobID OUTPUT , @job_name = N'eoooc备份', @owner_login_name = N'sa', @description = N'没有可用的描述。', @category_name = N'Database Maintenance', @enabled = 1, @notify_level_email = 0, @notify_level_page = 0, @notify_level_netsend = 0, @notify_level_eventlog = 2, @delete_level= 0
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

-- 添加作业步骤
EXECUTE @ReturnCode = msdb.dbo.sp_add_jobstep @job_id = @JobID, @step_id = 1, @step_name = N'执行备份', @command = N'declare @filename nvarchar(100) set @filename=''F:/aa/eoooc-''+convert(varchar(10),getdate(),112) +''.bak''
print @filename

BACKUP DATABASE [eoooc] TO DISK = @filename WITH NOINIT , NOUNLOAD , NAME = N''eoooc备份'', NOSKIP , STATS = 10, NOFORMAT
', @database_name = N'master', @server = N'', @database_user_name = N'', @subsystem = N'TSQL', @cmdexec_success_code = 0, @flags = 0, @retry_attempts = 0, @retry_interval = 1, @output_file_name = N'', @on_success_step_id = 0, @on_success_action = 1, @on_fail_step_id = 0, @on_fail_action = 2
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXECUTE @ReturnCode = msdb.dbo.sp_update_job @job_id = @JobID, @start_step_id = 1

IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

-- 添加作业调度
EXECUTE @ReturnCode = msdb.dbo.sp_add_jobschedule @job_id = @JobID, @name = N'每天备份一次', @enabled = 1, @freq_type = 4, @active_start_date = 20090902, @active_start_time = 214000, @freq_interval = 1, @freq_subday_type = 1, @freq_subday_interval = 0, @freq_relative_interval = 0, @freq_recurrence_factor = 0, @active_end_date = 99991231, @active_end_time = 235959
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

-- 添加目标服务器
EXECUTE @ReturnCode = msdb.dbo.sp_add_jobserver @job_id = @JobID, @server_name = N'(local)'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

END
COMMIT TRANSACTION
GOTO EndSave
QuitWithRollback:
IF (@@TRANCOUNT > 0) ROLLBACK TRANSACTION
EndSave: