smallkun/class-notes
smallkun/class-notes
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Auto commit

Browse Source
This commit is contained in:
smallkun 2025-03-19 07:59:01 +08:00
parent df4fea3437
commit 72ad4426fe
1 changed files with 24 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
2207/MySQL数据库操作综合练习题答案.md
View File

@ -449,6 +449,30 @@ CREATE TABLE SG (
FOREIGN KEY (Sn0) REFERENCES Student(Sn0), -- 外键，引用 Student 表
FOREIGN KEY (Cn0) REFERENCES Course(Cn0) -- 外键，引用 Course 表
);
INSERT INTO Student (Sno, Sname, Ssex, Sage, Sdept, Scome) VALUES
('05001', '张三', '男', 20, '计算机系', '2021-09-01'),
('05002', '李四', '女', 21, '数学系', '2021-09-01'),
('05003', '王五', '男', 22, '计算机系', '2021-09-01'),
('05004', '李洋', '男', 19, '物理系', '2021-09-01'),
('05019', '赵六', '女', 20, '计算机系', '2021-09-01');
INSERT INTO Course (Cno, Cname, Cpno, Ccredit) VALUES
('1', '数据库', NULL, 4),
('2', '数学', NULL, 3),
('3', '物理', NULL, 3),
('4', '操作系统', '1', 4);
INSERT INTO SG (Sno, Cno, Grade) VALUES
('05001', '1', 85),
('05001', '2', 90),
('05002', '1', 78),
('05002', '3', 88),
('05003', '1', 92),
('05003', '4', 76),
('05004', '3', 95),
('05019', '1', 80),
('05019', '4', 85);
```
---