[์ด๋ณด์๋ ์ค๋นํ๋ SQL ์ฝ๋ฉ ํ ์คํธ] ์๋ฆฌ์ฆ์ ์ค์ต๊ณผ ํ ์คํธ์ ํ์ํ ์ฟผ๋ฆฌ๋ฌธ๊ณผ ์ํ ๋ฐ์ดํฐ ์ ๋๋ค.
ํด๋น ์๋ฆฌ์ฆ๋ฅผ ํ์ตํ๊ธฐ ์ํด์๋ ๋ค์๊ณผ ๊ฐ์ 2 ๊ฐ์ ํ ์ด๋ธ์ด ํ์ํฉ๋๋ค :)
'์๋ฆฌ์ฆ/- ์ด๋ณด์๋ ์ค๋นํ๋ SQL ์ฝ๋ฉ ํ ์คํธ' ์นดํ ๊ณ ๋ฆฌ์ ๊ธ ๋ชฉ๋ก
ํ์ ๊ฐ๋ฐ์ ์ฅ์์ต์ ๊ธฐ์ ๋ธ๋ก๊ทธ
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ํ ์ด๋ธ ๋ชฉ๋ก
- usertb1
- buytb1
usertb1
์ฌ์ฉ์ ์ ๋ณด๊ฐ ๋ด๊ธด ํ ์ด๋ธ์ด๋ค.
์นผ๋ผ๋ช
- userid (PK) : ์ฌ์ฉ์ ๋ฒํธ
- name : ์ฌ์ฉ์ ์ด๋ฆ
- birthyear : ์๋ ์์ผ
- addr : ์ฃผ์
- mobile1 : ํด๋์ ํ ๋ฒํธ1
- mobile2 : ํด๋์ ํ ๋ฒํธ2
- height : ํค
- mdate : ๊ฐ์ ์ผ์
ํ ์ด๋ธ ์์ฑ ์ฟผ๋ฆฌ๋ฌธ
DROP TABLE IF EXISTS usertb1;
CREATE TABLE usertb1
(
userid CHAR(8) NOT NULL PRIMARY KEY,
name VARCHAR(10) NOT NULL,
birthyear INT NOT NULL,
addr CHAR(3) NOT NULL,
mobile1 CHAR(3),
mobile2 CHAR(8),
height SMALLINT,
mdate DATE
)
/*๋ง์ฝ ์ฟผ๋ฆฌ๋ฌธ์ด ์คํ๋์ง ์์ผ๋ฉด ๋๊ธ๋ก ์๋ ค์ฃผ์ธ์ !*/
USERTB1 ์ํ ๋ฐ์ดํฐ
insert into usertb1 values('LSG', '์ด์น๊ธฐ', 1987, '์์ธ', '011', '1111111', 177, '2008-8-8');
insert into usertb1 values('KHJ', '๊นํธ์ค', 1989, '๊ฒฝ๋ถ', '010', '2222222', 183, '2010-12-23');
insert into usertb1 values('PJH', '๋ฐ์งํ', 1996, '๋์ ', '010', '3333333', 180, '2019-3-2');
insert into usertb1 values('JWI', '์ฅ์์ต', 1997, '๊ฒฝ๋ถ', '010', '4444444', 183, '2021-1-8');
insert into usertb1 values('SHM', '์ํฅ๋ฏผ', 1985, '์ธ์ฒ', '011', '5555555', 186, '2003-6-15');
insert into usertb1 values('PJS', '๋ฐ์ง์ฑ', 1974, '์ธ์ ', '010', '6666666', 170, '2011-3-29');
insert into usertb1 values('JIJ', '์กฐ์ธ์ค', 1950, '์ ๋จ', '011', '7777777', 178, '2008-6-6');
insert into usertb1 values('KHD', '๊ฐํธ๋', 1968, '๋ถ์ฐ', '010', '8888888', 183, '2013-4-17');
insert into usertb1 values('PMS', '๋ฐ๋ฏผ์', 1993, '์์ธ', '011', '9999999', 155, '2012-8-22');
insert into usertb1 values('LKI', '์ด๊ฐ์ธ', 2001, '์ ๋จ', '070', '0000000', 176, '2001-2-13');
buytb1
์ฌ์ฉ์๊ฐ ๊ตฌ๋งคํ ๋ชฉ๋ก์ด ๋ด๊ธด ํ ์ด๋ธ์ด๋ค.
์นผ๋ผ๋ช
- num (PK) : ๊ตฌ๋งค ๋ฒํธ
- userid (FK) : ๊ตฌ๋งค ์ฌ์ฉ์ ๋ฒํธ
- prodname : ์ํ๋ช
- groupname : ์นดํ ๊ณ ๋ฆฌ ๊ทธ๋ฃน๋ช
- price : ๊ธ์ก
- amount : ์๋
ํ ์ด๋ธ ์์ฑ ์ฟผ๋ฆฌ๋ฌธ
DROP TABLE IF EXISTS buytb1;
CREATE TABLE buytb1
(
num INT AUTO_INCREMENT NOT NULL PRIMARY KEY,
userid CHAR(8) NOT NULL,
prodname CHAR(6) NOT NULL,
groupname CHAR(4),
price INT NOT NULL,
amount SMALLINT NOT NULL,
FOREIGN KEY (userid) REFERENCES usertb1(userid)
)
/*๋ง์ฝ ์ฟผ๋ฆฌ๋ฌธ์ด ์คํ๋์ง ์์ผ๋ฉด ๋๊ธ๋ก ์๋ ค์ฃผ์ธ์ !*/
BUYTB1 ์ํ ๋ฐ์ดํฐ
insert into buytb1 values(NULL, "LSG", "์ฑ
", null, 15, 5);
insert into buytb1 values(NULL, "JWI", "๋
ธํธ๋ถ", null, 1000, 1);
insert into buytb1 values(NULL, "LSG", "์ด๋ํ", "์๋ฅ", 130, 5);
insert into buytb1 values(NULL, "PJH", "์ฒญ๋ฐ์ง", "์๋ฅ", 50, 8);
insert into buytb1 values(NULL, "KHJ", "๋ชจ์", "์๋ฅ", 20, 13);
insert into buytb1 values(NULL, "JIJ", "๋ชจ์", null, 20, 6);
insert into buytb1 values(NULL, "JWI", "ํด๋ํฐ", "๊ฐ์ ", 800, 1);
insert into buytb1 values(NULL, "PJH", "์ฑ
", null, 15, 10);
insert into buytb1 values(NULL, "KHJ", "์ด๋ํ", "์๋ฅ", 130, 3);
insert into buytb1 values(NULL, "PJH", "๋ชจ์", null, 20, 3);
insert into buytb1 values(NULL, "PMS", "์ด๋ํ", null, 130, 4);
insert into buytb1 values(NULL, "JIJ", "๋
ธํธ๋ถ", "๊ฐ์ ", 1000, 1);
insert into buytb1 values(NULL, "KHD", "๋
ธํธ๋ถ", "๊ฐ์ ", 1000, 1);
insert into buytb1 values(NULL, "PMS", "ํด๋ํฐ", null, 800, 1);
insert into buytb1 values(NULL, "LSG", "๋
ธํธ๋ถ", null, 1000, 1);
insert into buytb1 values(NULL, "LKI", "์ฒญ๋ฐ์ง", null, 50, 2);
insert into buytb1 values(NULL, "PJH", "๋
ธํธ๋ถ", "๊ฐ์ ", 1000, 1);
๋๊ธ