现在有两张表,第一张表有学生姓名,语文,数学,英语成绩。第二张表有学生姓名,物理,化学,政治成绩。
1. 找出既参加了table1,也参加了table2的考试的学生的数学和物理成绩:
SELECT achievement_1.name, achievement_1.math, achievement_2.physics FROM achievement_1 INNER JOIN achievement_2 ON achievement_1.name = achievement_2.name ORDER BY achievement_1.name; SELECT achievement_1.name, achievement_1.math, achievement_2.physics FROM achievement_1, achievement_2 WHERE achievement_1.name = achievement_2.name;
结果: