I have the following stored procedure in MySQL
CREATE DEFINER=`test_db`@`%` PROCEDURE `ADD_ATTENDANCE`(IN `programID` INT, IN `clientID` INT, IN `insDate` DATETIME, IN `updDate` DATETIME, IN `insUser` INT, IN `updUser` INT, IN `lessonDate` DATE, IN `lessonTime` TIME)
LANGUAGE SQL
NOT DETERMINISTIC
CONTAINS SQL
SQL SECURITY DEFINER
COMMENT 'Add attedance to my calendar'
BEGIN
DECLARE max_sub, availability INT;
DECLARE cursor_max_sub CURSOR FOR SELECT max_sub FROM app_lesson WHERE id = programID;
DECLARE cursor_availability CURSOR FOR SELECT count(*) FROM attendance WHERE program_id = programID AND lesson_date = lessonDate AND lesson_time = lessonTime;
OPEN cursor_max_sub;
OPEN cursor_availability;
read_loop: LOOP
FETCH cursor_max_sub INTO max_sub;
FETCH cursor_availability INTO availability;
IF (availability < max_sub) THEN
insert into attendance (program_id, client_id, ins_date, upd_date, ins_user, upd_user, lesson_date, lesson_time)
values (programID, clientID, insDate, updDate, insUser, updUser, lessonDate, lessonTime);
LEAVE read_loop;
ELSE
insert into attendance_hold (program_id, client_id, ins_date, upd_date, ins_user, upd_user, lesson_date, lesson_time)
values (programID, clientID, insDate, updDate, insUser, updUser, lessonDate, lessonTime);
END IF;
END LOOP;
CLOSE cursor_max_sub;
CLOSE cursor_availability;
END;
Even though the cursor_max_sub
is equal to 6 and the cursor_availability
is equal to 4 my procedure always executes the else insert statement. Can you please help me out?
Thanks!!!
好的,这很棘手。由于某些原因,当我将max_sub
变量更改为maxNumberOfSubscription
一切都正常运行了… max_sub
是max_sub
某种保留关键字,还是复杂化,因为我的变量与返回的字段具有相同的名称选择语句?
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