오라클로 팀, 소속선수 테이블 만들고 조인하여 원하는 자료 출력하는 문제 풀기

1)TEAM TABLE을 작성하라.

TEAM : 팀 아이디, 지역, 팀명, 개설 날짜, 전화번호, 홈페이지

CREATE TABLE TEAM(
TEAMID NUMBER(8)
CONSTRAINT PK_TEAM_ID PRIMARY KEY,     -TEAMID는 고정키
RESIONNAME VARCHAR2(10),
TEAMNAME VARCHAR2(30) NOT NULL,
STARTDATE DATE,
TEL VARCHAR2(20),
HOMEPAGE VARCHAR2(30) );

 

2)PLAYER TABLE 을 작성하라

PLAYER : 선수번호, 선수명, 등록일, 포지션, 키, 팀 아이디 

CREATE TABLE PLAYER(
PLAYERID NUMBER
CONSTRAINT PK_PLAYER PRIMARY KEY,   -- PLAYERID는 고정치
PLAYERNAME VARCHAR2(20) NOT NULL,
JOINDATE DATE,
POSITION VARCHAR2(20),
HEIGHT NUMBER(5, 1),
TEAMID NUMBER(8)
);

ALTER TABLE PLAYER ADD CONSTRAINT FK_TEAM_ID FOREIGN KEY(TEAMID) --TEAMID는 외래키
REFERENCES TEAM(TEAMID);

3)TEAM 두개만 등록하시오. 

INSERT INTO TEAM(
TEAMID, RESIONNAME, TEAMNAME, STARTDATE, TEL, HOMEPAGE)
VALUES(
10, '서울', '베어즈', '81/03/12', '02-123-4567', 'http:\\www.bears.com');

INSERT INTO TEAM(
TEAMID, RESIONNAME, TEAMNAME, STARTDATE, TEL, HOMEPAGE)
VALUES(
20, '대구', '라이온즈', SYSDATE, '031-3456-9785', 'http:\\www.lions.co.kr');

 

4)두개의 TEAM에 선수를 각각 3명씩 등록해 본다. 

INSERT INTO PLAYER(
PLAYERID, PLAYERNAME, JOINDATE, POSITION, HEIGHT, TEAMID)
VALUES(
100, '홍길동', '02/03/14', '투수', 181.1, 20);

INSERT INTO PLAYER(
PLAYERID, PLAYERNAME, JOINDATE, POSITION, HEIGHT, TEAMID)
VALUES(
101, '정수동', SYSDATE, '타자', 178.3, 20);

INSERT INTO PLAYER(
PLAYERID, PLAYERNAME, JOINDATE, POSITION, HEIGHT, TEAMID)
VALUES(
102, '성춘향', TO_DATE('20030425', 'YYYYMMDD'), '타자', 162.9, 10);

INSERT INTO PLAYER(
PLAYERID, PLAYERNAME, JOINDATE, POSITION, HEIGHT, TEAMID)
VALUES(
103, '홍두께', TO_DATE('20120630', 'YYYYMMDD'), '투수', 172.3, 10);

INSERT INTO PLAYER(
PLAYERID, PLAYERNAME, JOINDATE, POSITION, HEIGHT, TEAMID)
VALUES(104, '임꺽정', ' ', '투수', 188.3, ' '); 

 

5) LIONS소속 선수들만을 출력

SELECT *
FROM player
WHERE TEAMID = 20;

SELECT t.teamid, t.teamname, p.playername, p.position
FROM team t, player p
WHERE t.teamid = p.teamid
AND t.teamname = '라이온즈';

 

 

6)선수를 입력하면 그 선수의 팀 명과 전화번호, 홈페이지가 출력되도록 합니다.

SELECT t.teamname, t.tel, t.homepage, p.playername
FROM player p, team t
WHERE p.teamid = t.teamid
AND p.playername = '성춘향';