Question

I know there must be a simple way to do this but I couldn’t find one. I want to create a trigger that basically, when a row is created in table1, creates a new row in table2 with a foreign key of the id of table1. what is the general syntax for this? thanks!!

Answer 1

CREATE TRIGGER Syntax

For example –

DELIMITER $$

CREATE TRIGGER trigger1
  AFTER INSERT
  ON table1
  FOR EACH ROW
BEGIN
  INSERT INTO table2(id) VALUES(NEW.id);
END$$

DELIMITER ;