Open bailh opened 1 year ago
answer is ：select s.name student_name, s.age student_age, s.class_id class_id, c.name class_name from student s, class c; 并未用到cross join
answer is ：select s.name student_name, s.age student_age, s.class_id class_id, c.name class_name from student s, class c; 并未用到cross join