You can write Oracle database scheduled tasks through the following three methods: Use the DBMS_SCHEDULER package to create Scheduler stored procedures and jobs. Create credentials and jobs using the Oracle Scheduler service. Configure the job using Oracle Enterprise Manager Console.
How to write Oracle database scheduled tasks
Overview
Oracle The database provides a variety of options for creating and managing scheduled tasks. These tasks can automatically perform specific actions at specific times or intervals.
Method
1. Use the DBMS_SCHEDULER package
<code>CREATE PROCEDURE my_scheduler_proc AS BEGIN -- 执行的任务内容 END;</code>
<code>BEGIN DBMS_SCHEDULER.CREATE_JOB( job_name => 'my_job', job_type => 'STORED_PROCEDURE', job_action => 'my_scheduler_proc', start_date => SYSDATE, -- 开始执行时间 repeat_interval => 'FREQ=DAILY', -- 重复频率 end_date => NULL, -- 结束时间 enabled => TRUE, -- 任务是否启用 auto_drop => FALSE, -- 任务完成后是否自动删除 comments => 'My Scheduled Task' -- 任务描述 ); END;</code>
2. Use the Oracle Scheduler service
<code>CREATE USER scheduler IDENTIFIED BY password; GRANT CREATE SESSION TO scheduler; GRANT EXECUTE ON DBMS_SCHEDULER TO scheduler;</code>
<code>srvctl add scheduler job -job_name my_job -program_name my_scheduler_proc -schedule 'FREQ=DAILY' -enabled yes -comments 'My Scheduled Task'</code>
3. Use Oracle Enterprise Manager Console
Each of the above methods creates a task that performs a specific action at a specified time. Oracle Database also records task execution history for easy monitoring and troubleshooting.
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