How to add data from wordpress tables to new database tables you have created

I would suggest to use double prefix like wp_hm_account, since it will allow you to recognize the tables (as you mentioned in comment) and you will be also able to use wpdb class properly.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)