gyges_writer

create table article ( id int primary key auto_increment, title varchar(255) ); insert into article values(null,'a');insert into article (title)values('c');

create table dept( deptno int(11) primary key, dname varchar(14), loc varchar(13) ); insert into dept values (10,'A','A'); insert into dept values (20,'B','B'); insert into dept values (30,'C','C')