Trigger update on another table after insert

Question

I want the field current_price in table stock to be updated when we insert new into table stock_changes.

So stock.current_price should be updated to stock_changes.current_price

I have tried with triggers but it wont work.

CREATE TRIGGER update_stock
AFTER INSERT ON stock_changes
FOR EACH ROW
  UPDATE stock
     SET current_price =NEW.current_price
   WHERE id = NEW.stock_id; 

Answer 1

You need to use DELIMITER .

Try this :

DELIMITER $$
CREATE TRIGGER update_stock
AFTER INSERT ON stock_changes
FOR EACH ROW
begin
  UPDATE stock
     SET current_price =NEW.current_price
   WHERE id = NEW.stock_id; 
end;
$$
DELIMITER ;