同步两个MySQL表

Question

Have two separate databases. The master that holds the user information(username, password, address etc.). The slave database only has one table where the user name and password. I would like to happen is then an new user on the master db i created that the username and password is also added to the slave db.

Answer 1

You can do this with either a TRIGGER or STORED PROCEDURE .

In your case i guess you could use something like this (not tested):

CREATE TRIGGER `user_update` AFTER INSERT ON `User` 
FOR EACH ROW 
BEGIN
    INSERT INTO `mydb`.`UserLogin` (`id`, `UserName`, `Pass`) 
    VALUES (new.UserId, new.UserName, new.Password);
END$$

Answer 2

We face a similar situation. We use Percona Toolkit's pt-table-sync tool. It's rather simple to use.