sql server 定时备份脚本

DECLARE @filename VARCHAR(255)
DECLARE @date DATETIME

SELECT @date = GETDATE()
SELECT @filename = \'G:\backup\NewPlulishSQL-\'
+ CAST(DATEPART(yyyy, @date) AS VARCHAR) + \'-\'
+ CAST(DATEPART(mm, @date) AS VARCHAR) + \'-\'
+ CAST(DATEPART(dd, @date) AS VARCHAR) + \'.bak\'

BACKUP DATABASE NewsPublish TO DISK=@filename WITH INIT

DECLARE @filename VARCHAR(255)
DECLARE @date DATETIME

SELECT @date = GETDATE()
SELECT @filename = \'G:\backup\NewPlulishSQL\'+ \'(\'
        + CONVERT(varchar(100), GETDATE(), 112) + \')\' + \'.bak\'

BACKUP DATABASE NewsPublish TO DISK=@filename WITH INIT

注意要存在backup文件夹

每天三点备份

USE [msdb]
GO

/****** Object:  Job [定时备份]    Script Date: 01/29/2019 11:52:49 ******/
IF  EXISTS (SELECT job_id FROM msdb.dbo.sysjobs_view WHERE name = N\'定时备份\')
EXEC msdb.dbo.sp_delete_job @job_id=N\'b155492a-4e2e-4137-9a2e-e942216e18b6\', @delete_unused_schedule=1
GO

USE [msdb]
GO

/****** Object:  Job [定时备份]    Script Date: 01/29/2019 11:52:49 ******/
BEGIN TRANSACTION
DECLARE @ReturnCode INT
SELECT @ReturnCode = 0
/****** Object:  JobCategory [[Uncategorized (Local)]]]    Script Date: 01/29/2019 11:52:49 ******/
IF NOT EXISTS (SELECT name FROM msdb.dbo.syscategories WHERE name=N\'[Uncategorized (Local)]\' AND category_class=1)
BEGIN
EXEC @ReturnCode = msdb.dbo.sp_add_category @class=N\'JOB\', @type=N\'LOCAL\', @name=N\'[Uncategorized (Local)]\'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback

END

DECLARE @jobId BINARY(16)
EXEC @ReturnCode =  msdb.dbo.sp_add_job @job_name=N\'定时备份\', 
        @enabled=1, 
        @notify_level_eventlog=0, 
        @notify_level_email=0, 
        @notify_level_netsend=0, 
        @notify_level_page=0, 
        @delete_level=0, 
        @description=N\'无描述。\', 
        @category_name=N\'[Uncategorized (Local)]\', 
        @owner_login_name=N\'sa\', @job_id = @jobId OUTPUT
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
/****** Object:  Step [备份数据库]    Script Date: 01/29/2019 11:52:49 ******/
EXEC @ReturnCode = msdb.dbo.sp_add_jobstep @job_id=@jobId, @step_name=N\'备份数据库\', 
        @step_id=1, 
        @cmdexec_success_code=0, 
        @on_success_action=1, 
        @on_success_step_id=0, 
        @on_fail_action=2, 
        @on_fail_step_id=0, 
        @retry_attempts=0, 
        @retry_interval=0, 
        @os_run_priority=0, @subsystem=N\'TSQL\', 
        @command=N\'DECLARE @filename VARCHAR(255)
DECLARE @date DATETIME

SELECT @date = GETDATE()
SELECT @filename = \'\'G:\backup\NewPlulishSQL\'\'+ \'\'(\'\'
        + CONVERT(VARCHAR(100), GETDATE(), 112) + \'\')\'\' + \'\'.bak\'\'

BACKUP DATABASE NewsPublish TO DISK=@filename WITH INIT\', 
        @database_name=N\'master\', 
        @flags=0
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_update_job @job_id = @jobId, @start_step_id = 1
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_add_jobschedule @job_id=@jobId, @name=N\'每天备份\', 
        @enabled=1, 
        @freq_type=4, 
        @freq_interval=1, 
        @freq_subday_type=1, 
        @freq_subday_interval=0, 
        @freq_relative_interval=0, 
        @freq_recurrence_factor=0, 
        @active_start_date=20190129, 
        @active_end_date=99991231, 
        @active_start_time=30000, 
        @active_end_time=235959, 
        @schedule_uid=N\'13f46e06-2d9b-477f-b3f1-6e34451dd9fd\'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_add_jobserver @job_id = @jobId, @server_name = N\'(local)\'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
COMMIT TRANSACTION
GOTO EndSave
QuitWithRollback:
    IF (@@TRANCOUNT > 0) ROLLBACK TRANSACTION
EndSave:

GO