2020/11/22 刘一辰的JAVA随笔
今日目标:Mysql学习26
实验内容:
-- 21.查询 张旭 教师任课的学生的成绩
select * from student where s_no IN (SELECT s_no FROM score WHERE c_no = (SELECT c_no FROM course WHERE t_no = (SELECT t_no FROM teacher WHERE t_name='张旭')));
+------+--------+-------+---------------------+---------+
| s_no | s_name | s_sex | s_birthday | s_class |
+------+--------+-------+---------------------+---------+
| 103 | 王丽 | 女 | 1976-01-23 00:00:00 | 95033 |
| 105 | 王芳 | 女 | 1975-02-10 00:00:00 | 95031 |
| 109 | 赵铁柱 | 男 | 1974-06-03 00:00:00 | 95031 |
+------+--------+-------+---------------------+---------+

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