I have created simple event but it doesn't run:
DELIMITER |
CREATE EVENT myevent3
ON SCHEDULE EVERY 1 second
STARTS current_timestamp()
ENDS CURRENT_TIMESTAMP + INTERVAL 1 DAY
DO
BEGIN
UPDATE hiberante.animal SET name = name + 'a' where id = 6;
END |
DELIMITER ;
I have done:
SET GLOBAL event_scheduler = ON;
Also done:
SELECT * FROM INFORMATION_SCHEMA.EVENTS;
and
SELECT * FROM mysql.event;
And it still doesn't want to start working.
In my process list:
SHOW PROCESSLIST;
Related
I have a mysql table that looks like this
| begintime | endtime | begindate | enddate | state |
+------------+----------+------------+----------+-------+
| TIME | TIME | DATE | DATE | string|
+------------+----------+------------+----------+-------+
I have this code
CREATE EVENT Update
ON SCHEDULE
EVERY 1 SECOND
DO
UPDATE tablename SET tablename.state = CASE
WHEN (SELECT CURRENT_TIME() FROM DUAL)>=tablename.begintime AND (SELECT CURDATE()>= tablename.begindate) THEN "Available"
WHEN (SELECT CURRENT_TIME() FROM DUAL)>tablename.endtime AND (SELECT CURDATE()= tablename.enddate) THEN "Finished"
ELSE "Not Available"
END
I want the server to be always checking if any of those statements is true, and I dont know how to remove the event when:
WHEN (SELECT CURRENT_TIME() FROM DUAL)>tablename.endtime AND (SELECT CURDATE()= tablename.enddate) THEN "Finished
Thanks for your help.
please try this one.
SET GLOBAL event_scheduler = ON;
DROP EVENT IF EXISTS Update1;
CREATE EVENT Update1
ON SCHEDULE
EVERY 1 SECOND
DO
UPDATE tablename SET tablename.state =
CASE
WHEN NOW() BETWEEN CONCAT(tablename.begindate,' ',tablename.begintime) AND CONCAT(tablename.enddate,' ',tablename.endtime) THEN "Available"
WHEN NOW() > CONCAT(tablename.enddate,' ',tablename.endtime) THEN "Finished"
ELSE "Not Available"
END;
To drop the event after setting to "Finished" try using something like this
SET GLOBAL event_scheduler = ON;
DROP EVENT IF EXISTS Update1;
DELIMITER //
CREATE EVENT Update1
ON SCHEDULE
EVERY 1 SECOND
DO BEGIN
SELECT #begindate := begindate,
#begintime:= begintime,
#enddate := enddate,
#endtime := endtime FROM tablename;
IF (NOW() BETWEEN CONCAT(#begindate,' ',#begintime) AND CONCAT(#enddate,' ',#endtime)) THEN
UPDATE tablename SET state = 'Available';
ELSEIF (NOW() < CONCAT(#begindate,' ',#begintime)) THEN
UPDATE tablename SET state = 'Not Available';
ELSEIF (NOW() > CONCAT(#enddate,' ',#endtime)) THEN
UPDATE tablename SET state = 'Finished';
DROP EVENT IF EXISTS Update1;
END IF;
END//
DELIMITER ;
I have written event scheduler in MySQL. After executing, this event is not working at all. The task which is written is not happening. Below is my event scheduler,
DELIMITER $$
CREATE EVENT `Untravelled_Deduction` ON SCHEDULE EVERY 1 DAY STARTS '2016-04-01 06:42:00' ON COMPLETION NOT PRESERVE ENABLE DO BEGIN
DECLARE UserId INT;
DECLARE v_finished INT DEFAULT 0;
DECLARE GetDate DATE DEFAULT DATE(NOW());
/*get each user who's account is activated and not swiped for the given date*/
DECLARE UnTravelled CURSOR FOR
SELECT DISTINCT U.user_id
FROM `um.user` U
INNER JOIN `um.user_ps.pass` UP ON UP.user_id=U.user_id
INNER JOIN `ps.pass` P ON P.pass_id=UP.pass_id AND P.status_id=4
INNER JOIN `um.user_trs.tariff` UT ON UT.user_id = U.user_id
WHERE U.is_verified_email=1 AND U.is_active=1
AND UT.user_tariff_id = (
/*check user available_journeys journeys is available or not*/
SELECT MAX(UT2.user_tariff_id) FROM `um.user_trs.tariff` UT2 WHERE UT2.user_id = UT.user_id
AND UT2.available_journeys>0 AND UT2.current_balance>0 AND UT2.end_date>=GetDate
);
DECLARE CONTINUE HANDLER FOR NOT FOUND SET v_finished=1;
/*Match th date with holiday list*/
SET #HolidayCount=(SELECT COUNT(*) FROM `holiday_list` WHERE DATE(holiday_date)=GetDate);
/*Match date for saturday and sunday*/
IF DAYOFWEEK(GetDate)!=1 AND DAYOFWEEK(GetDate)!=7 AND #HolidayCount=0 THEN
OPEN UnTravelled;
get_userid:LOOP
FETCH UnTravelled INTO UserId;
IF v_finished=1 THEN
LEAVE get_userid;
END IF;
/*Find user is registered for two way or one way, if #UserRouteCount=2 i.e. two way, #UserRouteCount=1 i.e. one way, */
SET #UserRouteCount = (SELECT COUNT(*) FROM `um.user_rm.route` WHERE user_id = UserId);
/*Get user swipe count to check how many times he swiped for the day. if only one and he is one way then deduct only once*/
SET #UserSwipeCount = (SELECT COUNT(*) FROM `ts.swipe_information` WHERE user_id = UserId AND DATE(swipe_in_time)=GetDate);
/*if user is two way and swiped only once for the day then deduct only once*/
IF (#UserRouteCount=2 AND #UserSwipeCount=1) THEN
SET #RouteCount=1;
ELSE
SET #RouteCount=#UserRouteCount;
END IF;
SET #i=1;
/*Get ticket details on this date for the user*/
SET #TicketCont= (SELECT COUNT(ticket_id) FROM `ts.ticket` WHERE DATE(`issued_on`)=GetDate AND user_id=UserId);
SET #IsInsert=0;
/*Check if any ticket is issued for the user on this date. if not he not travelled and go ahead to deduct*/
IF (#TicketCont=0) THEN
SET #IsInsert=1;
END IF;
/*check if ticket issued once, if he is two way user then decuct once*/
IF (#TicketCont=1 AND #UserRouteCount=2) THEN
SET #IsInsert=1;
END IF;
WHILE #i <= #RouteCount DO
IF (#IsInsert=1) THEN
/*Generate ticket if not exist for given date*/
/*get user current tariff plan*/
SET #UserTariffId = (SELECT user_tariff_id FROM `um.user_trs.tariff` WHERE user_id =UserId AND expired_on >= GetDate AND available_journeys > 0 ORDER BY user_tariff_id LIMIT 1);
IF(#UserTariffId IS NOT NULL)
THEN
SET #PerJourneyCost = (SELECT per_journey_cost FROM `um.user_trs.tariff` WHERE user_tariff_id=#UserTariffId );
SET #TariffCurrentBalance = (SELECT current_balance FROM `um.user_trs.tariff` WHERE user_tariff_id=#UserTariffId );
INSERT INTO `ts.ticket`(user_id,ticket_type_id,ticket_number,issued_on,
amount_charged,user_tariff_id,opening_balance,is_untravelled) VALUES
(UserId,1,'',UTC_TIMESTAMP(),#PerJourneyCost,#UserTariffId, #TariffCurrentBalance,1);
IF #PerJourneyCost IS NOT NULL THEN
/*Update user current tariff balance and number of journeys*/
UPDATE `um.user_trs.tariff` SET current_balance=(current_balance-#PerJourneyCost),
available_journeys =(available_journeys-1) WHERE user_tariff_id = #UserTariffId;
END IF;
END IF;
END IF;
SET #i=#i+1;
END WHILE;
/*Update user balance details and update Updated date in User table*/
UPDATE `um.user` SET updated_on=UTC_TIMESTAMP() WHERE user_id = UserId;
END LOOP get_userid;
CLOSE UnTravelled;
END IF;
END$$
DELIMITER ;
Couldn't rectify the issue, Please suggest any improvements.
Regards
Sangeetha
Creating event is not enough.
Make sure that scheduler is actually enabled:
MariaDB [(none)]> show global variables like 'event_scheduler';
+-----------------+-------+
| Variable_name | Value |
+-----------------+-------+
| event_scheduler | OFF |
+-----------------+-------+
1 row in set (0.00 sec)
If not, try to activate it at runtime:
SET GLOBAL event_scheduler = ON;
or
SET ##global.event_scheduler = ON;
Or in /etc/my.conf (or wherever your config is located), and restart server:
event_scheduler=ON
Official docs:
Event Scheduler Configuration
Event scheduler options
I've a table (table_rne) like
id maxv curv
1 200 20
And I've created an event (increase_curv) which will increase 'curv' by 10 every 1 minute
CREATE EVENT increase_curv
ON SCHEDULE EVERY 8 SECOND
DO
UPDATE table_rne SET curv = curv + 10 WHERE id='1';
But I want to drop the event when 'curv' reaches maxv (200). How to do that using MySQL conditions?
You can try something like this;
CREATE EVENT increase_curv
ON SCHEDULE EVERY 8 SECOND
DO
IF curv < 200 THEN
UPDATE table_rne SET curv = curv + 10 WHERE id='1'
ELSE
DROP EVENT [IF EXISTS] increase_curv
END IF;
I'd like (if it possible) check a time and if time = special time, make update of the table.
My idea:
select current_time()
if current_time = 15:19
{
update tasks set finished = replace (finished, '1', '0')
}
Do you have any ideas???
Use an event for that
delimiter //
CREATE EVENT IF NOT EXISTS your_event
ON SCHEDULE EVERY 1 DAY
STARTS '2014-07-04 15:19:00'
ON COMPLETION PRESERVE ENABLE
DO
update tasks
set finished = replace (finished, '1', '0');
//
It will be executed automatically every day on the defined time.
Can someone please tell me what's wrong with this sp. The logic seems to be ok, but when i check back in my table it doesn't work at all.
DELIMITER //
DROP PROCEDURE IF EXISTS add_zero_yearly_sales_proc //
CREATE PROCEDURE add_zero_yearly_sales_proc()
READS SQL DATA
BEGIN
DECLARE num_of_sales INT DEFAULT 0;
DECLARE last_ins_date DATETIME;
DECLARE done INT DEFAULT 0;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;
SET last_ins_date = DATE_SUB(NOW(), INTERVAL 2 YEAR);
ins_loop: WHILE last_ins_date < NOW() DO
SELECT COUNT(sales_amount_sold) INTO num_of_sales
FROM yearly_sales
WHERE sales_date_sold BETWEEN DATE_FORMAT(last_ins_date,'%Y-%m-01 00:00:01') AND DATE_FORMAT(LAST_DAY(last_ins_date),'%Y-%m-%d 23:59:59');
IF num_of_sales = 0 THEN
INSERT INTO yearly_sales(sales_date_sold, sales_amount_sold,sales_quantity)
VALUES (CONCAT(DATE_FORMAT(last_ins_date,'%Y-%m-01 00:00:01')),0, 0);
END IF ;
SET num_of_sales = 0;
SET last_ins_date = DATE_ADD(last_ins_date, INTERVAL 1 MONTH);
END WHILE ins_loop;
SET done = 0;
END ;//
DELIMITER ;
I've created an event that fires every hour to call this procedure. The procedure is supposed to check if there are months in the yearly_sales table without any sales values in them, and if so add 0 values for the amount & quantity, and the beginning of the month for the date. I've checked back but it doesn't seem to work.
Also here's the event i created to call it hourly
DELIMITER //
CREATE
EVENT `hourly_sales_evt`
ON SCHEDULE EVERY 1 HOUR STARTS DATE_FORMAT(NOW(),'%Y-%m-%d %H:55:00')
ON COMPLETION PRESERVE
DO BEGIN
CALL add_zero_yearly_sales_proc();
END //
DELIMITER ;
May be global event scheduler is in stopped/disabled state.
To turn on event scheduler, run any of the following:
SET GLOBAL event_scheduler = ON;
SET ##global.event_scheduler = ON;
SET GLOBAL event_scheduler = 1;
SET ##global.event_scheduler = 1;
When the Event Scheduler is ON, the event scheduler thread is listed in the output of SHOW PROCESSLIST as a daemon process, and its state is represented as shown here:
mysql> SHOW PROCESSLIST\G
*************************** 1. row ***************************
Id: 1
User: root
Host: localhost
db: NULL
Command: Query
Time: 0
State: NULL
Info: show processlist
*************************** 2. row ***************************
Id: 2
User: event_scheduler
Host: localhost
db: NULL
Command: Daemon
Time: 3
State: Waiting for next activation
Info: NULL
2 rows in set (0.00 sec)
Once the Event Scheduler is set ON, you would see it working.
Refer to : MySQL Event Scheduler Configuration
The procedure looks OK, the logic should work. But, I want to ask you - why do you check sales_date_sold from first second -DATE_FORMAT(last_ins_date,'%Y-%m-01 00:00:01'), shouldn't it be DATE_FORMAT(last_ins_date,'%Y-%m-01 00:00:00')?
Another point: you execute SELECT statement many times in the loop, it is not effective. Try to create additional (maybe temporary table) with month numbers and join two tables to find out months without any sales. In this case you will achieve result in one step.
I'm taking a guess here without doing much digging, but I think this is your issue:
READS SQL DATA
...
INSERT INTO yearly_sales(sales_date_sold, sales_amount_sold,sales_quantity)
VALUES (CONCAT(DATE_FORMAT(last_ins_date,'%Y-%m-01 00:00:01')),0, 0);