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MYSQL and PHP update events?


MYSQL and PHP update events?

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MYSQL and PHP update events?
Tag : php , By : WuJanJai
Date : November 24 2020, 01:01 AM

I think the issue was by ths following , Note
If you're worried about the cost of calling the MySQL server every 5 seconds, PHP supports persistent connections to the database. This will improve execution speed, without changing your script (or mechanism of notification) too much, and might be enough.

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Writing a MySQL Events to update the table


Tag : php , By : Wilfred Knigge
Date : March 29 2020, 07:55 AM
I hope this helps . You can do this with a PHP script with 1 query and execute it daily with a cron job.
UPDATE table SET status = 1 WHERE dateAdded <= '$whatever'

Update a value using MySQL Events


Tag : mysql , By : kalfa
Date : March 29 2020, 07:55 AM
I hope this helps . What is the value in active.time_stamp where active.user_id = 1?
Also, I think that your statement might be written more simply.
CREATE EVENT update_status
ON SCHEDULE EVERY 2 SECOND
DO
UPDATE active t 
SET t.active = 0 
WHERE t.user_id = 1 
AND TIME_TO_SEC(
    TIMEDIFF(
        t.time_stamp, DATE_ADD(NOW(),INTERVAL -15 SECOND)
    )
)>=0;
CREATE EVENT update_status_test
ON SCHEDULE EVERY 1 SECOND
DO
UPDATE active t 
SET t.active = 0 
WHERE t.user_id = 1;

MySQL trigger On Insert/Update events


Tag : mysql , By : somebody
Date : March 29 2020, 07:55 AM
may help you . With Grijesh's perfect help and his suggestion to use conditional statements, I was able to get ONE trigger that does both tasks. again Grijesh
 DELIMITER $$ 
 CREATE TRIGGER update_count AFTER INSERT ON ext_words 
 FOR EACH ROW 
   BEGIN
     IF NOT EXISTS (SELECT 1 FROM ext_words_count WHERE word = NEW.word) THEN
       INSERT INTO ext_words_count (word) VALUES (NEW.word);
   ELSE
       UPDATE ext_words_count SET word_count = word_count + 1 WHERE word = NEW.word;
   END IF;
  END $$    
 DELIMITER;   

MySQL Events 'Update on Column'


Tag : mysql , By : Salikh
Date : March 29 2020, 07:55 AM
hope this fix your issue You need to create an event for achieving this task. Trigger wont help since they are associated with entire row and gets executed on insertion, deletion or updation. Write a scheduled event which will execute say every hour (the frequency of running this is upto you) and check if the memo is valid or not. If it has expired make the corresponding status entry as 1.
Here is something to start with http://dev.mysql.com/doc/refman/5.1/en/create-event.html
 CREATE EVENT myevent ON SCHEDULE AT CURRENT_TIMESTAMP + INTERVAL 1 HOUR
  DO
    UPDATE memo SET status = 1 where sysdate()> valid until;

FullCalendar PHP and MySQL integration, events don't update


Tag : javascript , By : S. Fenz
Date : March 29 2020, 07:55 AM
With these it helps It may be that wrong or missing parameters are being sent to the database. Output all your necessary parameters in the alert Eg.
alert("Updated Successfully. title=" + event.title);
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