oracle、sqlserver和mysql都能创建自动执行的作业调度，定期完成固定工作，比如定期备份等都可以通过作业调度的方式实现。三种数据库作业调度都可以通过sql语句和内部命令的方式来创建、运行和停止。
oracle作业：
1创建存储过程
CREATE OR REPLACE
PROCEDURE PRO_TEST_JOB
AS
BEGIN
DBMS_OUTPUT.PUT_LINE('Navicat for Oracle');
END;
2、创建作业：
declare jobtest number;
BEGIN
dbms_job.submit(jobtest,'PRO_TEST_JOB();',sysdate,'sysdate +1/1440',false);
commit;
-- 单独运行job
dbms_job.run(1); --和select * from user_jobs; 中的job值对应，看what对应的过程
END;
3、停止job
dbms_job.broken(1,true);
commit;
end;
删除job
dbms_job.remove(1);
dbms_job.what(1,'sp_fact_charge_code;');
--修改某个job下一次运行时间
dbms_job.next_date(1,sysdate);
sqlserver使用sql创建作业:
BEGIN TRANSACTION
DECLARE @JobID BINARY(16)
DECLARE @ReturnCode INT
SELECT @ReturnCode = 0
IF (SELECT COUNT(*) FROM msdb.dbo.syscategories WHERE name = N'[Uncategorized (Local)]') < 1
EXECUTE msdb.dbo.sp_add_category @name = N'[Uncategorized (Local)]'
-- 删除同名的警报（如果有的话）。
SELECT @JobID = job_id
FROM msdb.dbo.sysjobs
WHERE (name = N'access911_每2周备份一次')
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“access911_每2周备份一次”，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'access911_每2周备份一次'
SELECT @JobID = NULL
END
BEGIN
-- 添加作业
EXECUTE @ReturnCode = msdb.dbo.sp_add_job @job_id = @JobID OUTPUT , @job_name = N'access911_每2周备份一次', @owner_login_name = N'Access911\access911', @description = N'没有可用的描述。', @category_name = N'[Uncategorized (Local)]', @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'2周备份', @command = N'EXECUTE cg_DoBackupJob ''a9SupperDatabase'',''a9SupperDatabase'',1
', @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'diaodu', @enabled = 1, @freq_type = 8, @active_start_date = 20061009, @active_start_time = 0, @freq_interval = 64, @freq_subday_type = 1, @freq_subday_interval = 0, @freq_relative_interval = 0, @freq_recurrence_factor = 2, @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:
mysql创建作业:
CREATE EVENT NOT EXISTS STAT
ON SCHEDULE EVERY 1 MONTH STARTS DATE_ADD(DATE_ADD(DATE_SUB(CURDATE(),INTERVAL DAY(CURDATE())-1 DAY), INTERVAL 1 MONTH),INTERVAL 1 HOUR)
ON COMPLETION PRESERVE ENABLE
DO
BEGIN
CALL STAT();
END;
关闭开启事件:
alter event event_name on completion preserver [enable | disable]
删除事件;
drop event event_name;
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