Notes MySQL Video Hướng dẫn [MySQL] Create Database, table https://youtu.be/fkXIAzu6gec [MySQL] Add PRIMARY KEY, FOREIGN KEY Constraint https://youtu.be/MSrC5gqGhS8 [MySQL] Create Database ER diagram https://youtu.be/ScPHoMF_01Q
Một số lưu ý khác
https://chartio.com/resources/tutorials/how-to-alter-a-column-from-null-to-not-null-in-sql-server/
https://www.w3schools.com/sql/sql_autoincrement.asp