Creating Event that execute at end of each month

Question

I need to create an event in mysql that runs at the end of every month 11 PM.I have tried creating an event that creates another events with code below:

DELIMITER | 
CREATE EVENT `2014-10-31_CALL_ISRSP` ON SCHEDULE AT '2014-10-31 23:50:00' 
DO 
BEGIN 
call myStoredProcedure(); 
set @creatNextEvnt := Concat("CREATE EVENT ",LAST_DAY( NOW() + INTERVAL 1 MONTH ),"_CALL_ISRSP ON SCHEDULE AT '",LAST_DAY( NOW() + INTERVAL 1 MONTH )," 23:50:00' DO BEGIN call IncidentsSummaryRecorder(); set @creatNextEvnt := Concat(\"CREATE EVENT \",LAST_DAY( NOW() + INTERVAL 1 MONTH ),\"_CALL_ISRSP ON SCHEDULE AT '\",LAST_DAY( NOW() + INTERVAL 1 MONTH ),\" 23:50:00'\"); PREPARE cer FROM @creatNextEvnt; EXECUTE cer; DEALLOCATE PREPARE cer; set @delLastEvent := Concat(\"DROP IF EXISTS EVENT \",LAST_DAY(NOW()),\"_CALL_ISRSP\");  PREPARE del FROM @delLastEvent; EXECUTE del; DEALLOCATE PREPARE del; END;");
select @creatNextEvnt;
PREPARE cer FROM @creatNextEvnt; 
EXECUTE cer; 
DEALLOCATE PREPARE cer; 
set @delLastEvent := Concat("DROP IF EXISTS EVENT ",LAST_DAY(NOW()),"_CALL_ISRSP");  
PREPARE delFROM @delLastEvent; 
EXECUTE del; 
DEALLOCATE PREPARE del; 
END|

but this gives me an error that prepared statement does not support this type of command yet.

I tried storing my SQL strings to a file and executing them within the same event, but I do not know how to execute the file I created. Any help?

Answer 1

You should never have to drop and create new events automatically.

You should just make the event repeatable:

• Every minute, check the date and time
• If the hour is 23 and minute is 50 on the last day of the month, call IncidentsSummaryRecorder();

Here is that code

DELIMITER $$

CREATE EVENT ISRSP
ON SCHEDULE
    EVERY 1 MINUTE
    STARTS '2014-10-31 23:50:00'
    ON COMPLETION PRESERVE
DO
BEGIN
    DECLARE rightnow DATETIME;
    DECLARE hh,mm TINYINT;

    SET rightnow = NOW();
    SET hh = HOUR(rightnow);
    SET mm = MINUTE(rightnow);

    IF DATE(rightnow) = LAST_DAY(DATE(rightnow)) THEN
        IF hh = 23 THEN
            IF mm = 50 THEN
                CALL IncidentsSummaryRecorder();
            END IF;
        END IF;
    END IF;

END $$

DELIMITER ;

Give it a Try !!!

Answer 2

In between BEGIN and END, use the below code:

IF DAY(NOW()) = DAY(LAST_DAY(NOW())) THEN
IF HOUR(NOW()) = 23 THEN
IF MINUTE(NOW()) = 50 THEN
CALL IncidentsSummaryRecorder();
END IF;
END IF;
END IF;