MySQL Event Scheduler on a specific time everyday

Question

Here's my query

CREATE EVENT
RESET ON SCHEDULE AT TIMESTAMP DO
UPDATE `ndic`.`students`
SET `status` = '0';  

How can I update status to "0" at 1 pm every day.

What can I use instead of TIMESTAMP?

Answer 1

This might be too late for your work, but here is how I did it. I want something run everyday at 1AM - I believe this is similar to what you are doing. Here is how I did it:

CREATE EVENT event_name
  ON SCHEDULE
    EVERY 1 DAY
    STARTS (TIMESTAMP(CURRENT_DATE) + INTERVAL 1 DAY + INTERVAL 1 HOUR)
  DO
    # Your awesome query

Answer 2

The documentation on CREATE EVENT is quite good, but it takes a while to get it right.

You have two problems, first, making the event recur, second, making it run at 13:00 daily.

This example creates a recurring event.

CREATE EVENT e_hourly
    ON SCHEDULE
      EVERY 1 HOUR
    COMMENT 'Clears out sessions table each hour.'
    DO
      DELETE FROM site_activity.sessions;

When in the command-line MySQL client, you can:

SHOW EVENTS;

This lists each event with its metadata, like if it should run once only, or be recurring.

The second problem: pointing the recurring event to a specific schedule item.

By trying out different kinds of expression, we can come up with something like:

CREATE EVENT IF NOT EXISTS `session_cleaner_event`
ON SCHEDULE
  EVERY '1 13' DAY_HOUR
  COMMENT 'Clean up sessions at 13:00 daily!'
  DO
    DELETE FROM site_activity.sessions;

Update, long over-due: The interval with the unit "DAY_HOUR" takes an expression that looks like 'day-number hour-number'. I have updated the oft-accepted solution to match that. Thanks, commenters for clarifying!

Answer 3

Try this

CREATE EVENT event1
ON SCHEDULE EVERY '1' DAY
STARTS '2012-04-17 13:00:00' -- should be in the future
DO
-- your statements
END

Answer 4

DROP EVENT IF EXISTS xxxEVENTxxx;
CREATE EVENT xxxEVENTxxx
  ON SCHEDULE
    EVERY 1 DAY
    STARTS (TIMESTAMP(CURRENT_DATE) + INTERVAL 1 DAY + INTERVAL 1 HOUR)
  DO
    --process;

¡IMPORTANT!->

SET GLOBAL event_scheduler = ON;

Answer 5

My use case is similar, except that I want a log cleanup event to run at 2am every night. As I said in the comment above, the DAY_HOUR doesn't work for me. In my case I don't really mind potentially missing the first day (and, given it is to run at 2am then 2am tomorrow is almost always the next 2am) so I use:

CREATE EVENT applog_clean_event
ON SCHEDULE 
    EVERY 1 DAY
    STARTS str_to_date( date_format(now(), '%Y%m%d 0200'), '%Y%m%d %H%i' ) + INTERVAL 1 DAY
COMMENT 'Test'
DO 

Answer 6

CREATE EVENT test_event_03
ON SCHEDULE EVERY 1 MINUTE
STARTS CURRENT_TIMESTAMP
ENDS CURRENT_TIMESTAMP + INTERVAL 1 HOUR
DO
   INSERT INTO messages(message,created_at)
   VALUES('Test MySQL recurring Event',NOW());