MySQL MySQL触发器中的IF语句
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时间：2020-08-31 13:03:26 来源:igfitidea点击:
IF statement inside MySQL trigger
提问by Husam
I need some help to complete this trigger. I try it but I don't know what is wrong.
我需要一些帮助来完成这个触发器。我试过了，但我不知道有什么问题。
This is the code:
这是代码：
delimiter $$
CREATE TRIGGER attendance_clock AFTER INSERT ON alldevicerecord
FOR EACH ROW
BEGIN
DECLARE check INT;
SET check= 1;
IF (check % 2 == 0) THEN
INSERT into designation(emp_id, clock_date, clock_in) VALUES (new.id, new.time, new.time);
check = check + 1;
ELSE
UPDATE designation SET clock_out = new.time WHERE emp_id = NEW.id;
check = check + 1;
END IF
END$$
delimiter ;
Anyone can help me please?
任何人都可以帮助我吗？
回答by juergen d
delimiter $$
CREATE TRIGGER attendance_clock AFTER INSERT ON alldevicerecord
FOR EACH ROW
BEGIN
DECLARE `check` INT;
SET `check` = 1;
IF (`check` % 2 = 0) THEN
INSERT INTO designation (emp_id, clock_date, clock_in) VALUES(new.id, new.time, new.time);
SET `check` = `check` + 1;
ELSE
UPDATE designation SET clock_out = new.time WHERE emp_id = NEW.id;
SET `check` = `check` + 1;
END IF;
END$$
delimeter ;
