Using an update trigger to update another table

Question

The program I am working on has a poorly designed backend and basically there are two different tables needed to hold the exact same information. I am trying to write a trigger

Answer 1

You need to close every statement inside the trigger with a ;, and I do mean every.

CREATE TRIGGER `after_update_A` AFTER UPDATE ON `A` FOR EACH ROW
BEGIN
    UPDATE TABLE B
    SET  username = NEW.username
       , password = NEW.password
       , email = NEW.email
    WHERE id = NEW.id;    //<<-----------
END $$

Answer 2

I have the feeling that you are compiling .sql as .sh

the trigger is .sql and should be executed using

mysql-batch-commands.html

p.s. What @Johan says is obviously correct as well

p.s.2 Now I see another error: you will need a delimiter between the drop and create statements