https://github.com/talaxy009/electron-oracledb-app
数据库实验大作业
https://github.com/talaxy009/electron-oracledb-app
electron oracle-database
Last synced: about 1 month ago
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数据库实验大作业
- Host: GitHub
- URL: https://github.com/talaxy009/electron-oracledb-app
- Owner: Talaxy009
- License: mit
- Created: 2020-12-29T16:52:04.000Z (over 4 years ago)
- Default Branch: main
- Last Pushed: 2020-12-30T13:34:23.000Z (over 4 years ago)
- Last Synced: 2025-01-20T17:49:56.432Z (3 months ago)
- Topics: electron, oracle-database
- Language: JavaScript
- Homepage:
- Size: 112 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# electron-oracledb-app
数据库实验课的作业，前后断断续续花了三周时间来学习 Electron 和开发这个系统。学习到了很多 Electron 和 React Hook 的相关知识。
## 用于搭建数据库的SQL语句
```sql
--表格
CREATE table Course(cno VARCHAR2(5) PRIMARY KEY, cname VARCHAR2(20) NOT NULL, ccredit NUMBER(2), tno VARCHAR2(20), FOREIGN KEY(tno) REFERENCES Teacher(tno) on delete cascade);
CREATE table Student(sno VARCHAR2(17) PRIMARY KEY, sname VARCHAR2(10) NOT NULL, sage NUMBER(3), ssex VARCHAR2(3));
CREATE table Teacher (TNO VARCHAR2(20) primary key, TName VARCHAR2(20) not null, TTitle VARCHAR2(8) not null, TSalary NUMBER(30,2));
CREATE table Sc(sno VARCHAR2(17), cno VARCHAR2(5), grade NUMBER(5,2), PRIMARY KEY(sno,cno), FOREIGN KEY(sno) REFERENCES Student(sno) on delete cascade, FOREIGN KEY(cno) REFERENCES Course(cno) on delete cascade);
--视图
CREATE view StudentSummary as (
SELECT sno,SUM(ccredit)sum,AVG(grade)avg,MAX(grade)max,MIN(grade)min FROM sc join course on sc.cno = course.cno
GROUP BY sno
);
CREATE view TeacherSummary as (
SELECT ttitle,AVG(tsalary)avgSalary,count(ttitle)members FROM teacher GROUP BY ttitle
);
CREATE view CourseSummary as (
SELECT course.cname,AVG(grade)avgGrade,MAX(grade)maxGrade,MIN(grade)minGrade FROM sc join course on sc.cno = course.cno
GROUP BY course.cname
);
--以下为学生表的初始数据
insert into Student(sname,ssex,sno, sage) values('李勇','男','1906200001',20);
insert into Student(sname,ssex,sno, sage) values('刘晨','女','1906200002',19);
insert into Student(sname,ssex,sno, sage) values('王敏','女','1906200003',18);
insert into Student(sname,ssex,sno, sage) values('张立','男','1906200004',19);
--以下为课程表的初始数据
insert into course(cno,cname,ccredit,tno) values('2','高等数学',2,'t001');
insert into course(cno,cname,ccredit,tno) values('5','数据结构',4,'t002');
insert into course(cno,cname,ccredit,tno) values('1','数据库',4,'t003');
insert into course(cno,cname,ccredit,tno) values('3','编译原理',4,'t006');
insert into course(cno,cname,ccredit,tno) values('4','面向对象',3,'t008');
--以下为选修表的初始数据
insert into sc(sno,cno,grade) values('1906200001','1',92);
insert into sc(sno,cno,grade) values('1906200001','2',85);
insert into sc(sno,cno,grade) values('1906200001','3',88);
insert into sc(sno,cno,grade) values('1906200002','2',90);
insert into sc(sno,cno,grade) values('1906200002','3',80);
insert into sc(sno,cno,grade) values('1906200002','4',87);
--以下为教师表的初始数据
insert into teacher(tno, tname, tsalary, ttitle) values('t001', '张三', 3000, '导师');
insert into teacher(tno, tname, tsalary, ttitle) values('t002', '李四', 3600, '教授');
insert into teacher(tno, tname, tsalary, ttitle) values('t003', '王五', 5600, '助讲');
insert into teacher(tno, tname, tsalary, ttitle) values('t004', '刘晨', 5800, '系主任');
insert into teacher(tno, tname, tsalary, ttitle) values('t005', '王二小', 3500, '辅导员');
insert into teacher(tno, tname, tsalary, ttitle) values('t006', '李小龙', 5687, '教授');
insert into teacher(tno, tname, tsalary, ttitle) values('t007', '熊猫', 6000, '导师');
insert into teacher(tno, tname, tsalary, ttitle) values('t008', '李小小', 5687, '教授');
COMMIT;
```