create table student(id int auto_increment primary key,name varchar(10) unique key,gender enum('男','女'),provence varchar(10),college_id int); insert into student ...

Recently, I became the owner of more than a thousand records of Go (an ancient oriental strategic board game) games played by professional or amateur players. All the games were stored in Smart Game ...

You often need data that are stored in separate tables. For example, you may want to produce a report that gets information about flight delays from one table and boarding capacity from another.