jintae1954 / 2021-db

인하대학교 정보통신공학과 데이터베이스 실습 코드 저장소

2021-db

     데이터베이스설계

3주차 실습과제

1. DATABASE: dbdesign

2. CREATE TABLE:

CREATE TABLE student 
(
    studentNumber int not null,
    name char(30) not null,
    major char(30) not null,
    grade char(1) not null,
    admission char(30) not null,
    email char(50) not null,
    PRIMARY KEY(studentNumber)
);

3. INSERT:

INSERT INTO student VALUES
    (12161733, 'park', 'com', '3', '2016-03', '[email protected]'),
    (12171733, 'kim', 'com', '3', '2017-03', '[email protected]');

4. SELECT:

studentNumber	name	major	grade	admission	email
12161733	park	com	3	2016-03	[email protected]
12171733	kim	com	3	2-17-03	[email protected]

8주차 실습과제

1. DATABASE: week8

2. CREATE TABLE:

CREATE TABLE DEPARTMENT
( Dname           VARCHAR(15)       NOT NULL,
  Dnumber         INT               NOT NULL,
  Mgr_ssn         CHAR(9)           NOT NULL,
  Mgr_start_date  DATE,
PRIMARY KEY (Dnumber),
UNIQUE      (Dname),
FOREIGN KEY (Mgr_ssn) REFERENCES EMPLOYEE(Ssn) );

CREATE TABLE EMPLOYEE
( Fname           VARCHAR(10)   NOT NULL,
  Minit           CHAR,
  Lname           VARCHAR(20)      NOT NULL,
  Ssn             CHAR(9)          NOT NULL,
  Bdate           DATE,
  Address         VARCHAR(30),
  Sex             CHAR(1),
  Salary          DECIMAL(5),
  Super_ssn       CHAR(9),
  Dno             INT               NOT NULL,
PRIMARY KEY   (Ssn));

3. INSERT:

INSERT INTO DEPARTMENT VALUES
    ('정보통신공학', 1, '12161733', '2016-03-02'),
    ('정치학과', 2, '12161700', '1999-09-09');
    ('국제통상학과', 3, '12161734', '2016-03-02');

INSERT INTO EMPLOYEE VALUES
    ('SQUID', 'G', 'AME', '00000001','1945-08-15','SEOUL','남', 9999, '12161733', 1),
    ...
    ('Pink', 'T', 'Soldier', '12161737', '1997-03-12', 'SEOUL', '남', 1300, '12161733', 1);

4. SELECT:

DEPARTMENT TABLE

Dname	Dnumber	Mgr_ssn	Mgr_start_date
정보통신공학과	1	12161733	2016-03-02
정치학과	2	12161700	1999-09-09
국제통상학과	3	12161734	2016-03-02

EMPLOYEE TABLE

Fname	Minit	Lname	Ssn	Bdate	Address	Sex	Salary	Super_ssn	Dno
SQUID	G	AME	00000001	1945-08-15	SEOUL	남	9999	12161733	1
John	F	Kennedy	12161700	1971-05-09	USA	남	500		2
PARK	Y	JINTAE	12161733	1997-10-11	SEOUL	남	1000		1
Jin	K	Park	12161734	1997-03-12	SEOUL	남	1200		3
Pink	T	Soldier	12161737	1997-03-12	SEOUL	남	1300	12161733	1

10주차 실습과제

1. DATABASE: week10

2. CREATE TABLE:

CREATE TABLE INVESTMENT
( Id           INT              NOT NULL,
  Name         VARCHAR(20)      NOT NULL,
  Raing        VARCHAR(5)       NOT NULL,
PRIMARY KEY (Dnumber),
);

3. INSERT:

INSERT INTO INVESTMENT VALUES
    (1, 'APPLE', 'GOOD'),
    (2, 'QCOM', 'GOOD'),
    (3, 'FACEBOOK', 'BAD),
    (4, 'SAMSUNG', 'SOSO'),
    (5, 'BOEING', 'SOSO');

4. SELECT:

INVESTMENT TABLE

Id	Name	Rating
1	APPLE	GOOD
2	QCOM	GOOD
3	FACEBOOK	BAD
4	SAMSUNG	SOSO
5	BOEING	SOSO