๋ณธ๋ฌธ ๋ฐ”๋กœ๊ฐ€๊ธฐ
  • ์žฅ์›์ต ๊ธฐ์ˆ ๋ธ”๋กœ๊ทธ
๐Ÿ“š ์‹œ๋ฆฌ์ฆˆ/- ์ดˆ๋ณด์ž๋„ ์ค€๋น„ํ•˜๋Š” SQL ์ฝ”๋”ฉ ํ…Œ์ŠคํŠธ

[์ดˆ๋ณด์ž๋„ ์ค€๋น„ํ•˜๋Š” SQL ์ฝ”๋”ฉ ํ…Œ์ŠคํŠธ] ์ƒ˜ํ”Œ ๋ฐ์ดํ„ฐ ๋ฐ ์ƒ˜ํ”Œ ์ฟผ๋ฆฌ๋ฌธ

by Wonit 2021. 2. 25.

[์ดˆ๋ณด์ž๋„ ์ค€๋น„ํ•˜๋Š” SQL ์ฝ”๋”ฉ ํ…Œ์ŠคํŠธ]  ์‹œ๋ฆฌ์ฆˆ์˜ ์‹ค์Šต๊ณผ ํ…Œ์ŠคํŠธ์— ํ•„์š”ํ•œ ์ฟผ๋ฆฌ๋ฌธ๊ณผ ์ƒ˜ํ”Œ ๋ฐ์ดํ„ฐ ์ž…๋‹ˆ๋‹ค.

 

ํ•ด๋‹น ์‹œ๋ฆฌ์ฆˆ๋ฅผ ํ•™์Šตํ•˜๊ธฐ ์œ„ํ•ด์„œ๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์€ 2 ๊ฐœ์˜ ํ…Œ์ด๋ธ”์ด ํ•„์š”ํ•ฉ๋‹ˆ๋‹ค :)

 

'์‹œ๋ฆฌ์ฆˆ/- ์ดˆ๋ณด์ž๋„ ์ค€๋น„ํ•˜๋Š” SQL ์ฝ”๋”ฉ ํ…Œ์ŠคํŠธ' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๊ธ€ ๋ชฉ๋ก

ํ•™์ƒ ๊ฐœ๋ฐœ์ž ์žฅ์›์ต์˜ ๊ธฐ์ˆ  ๋ธ”๋กœ๊ทธ

wonit.tistory.com

ํ…Œ์ด๋ธ” ๋ชฉ๋ก

  1. usertb1
  2. buytb1

usertb1

์‚ฌ์šฉ์ž ์ •๋ณด๊ฐ€ ๋‹ด๊ธด ํ…Œ์ด๋ธ”์ด๋‹ค.

 

์นผ๋Ÿผ๋ช…

  • userid (PK) : ์‚ฌ์šฉ์ž ๋ฒˆํ˜ธ
  • name : ์‚ฌ์šฉ์ž ์ด๋ฆ„
  • birthyear : ์ƒ๋…„ ์›”์ผ
  • addr : ์ฃผ์†Œ
  • mobile1 : ํœด๋Œ€์ „ํ™” ๋ฒˆํ˜ธ1
  • mobile2 : ํœด๋Œ€์ „ํ™” ๋ฒˆํ˜ธ2
  • height : ํ‚ค
  • mdate : ๊ฐ€์ž…์ผ์ž

 

ํ…Œ์ด๋ธ” ์ƒ์„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
)
/*๋งŒ์•ฝ ์ฟผ๋ฆฌ๋ฌธ์ด ์‹คํ–‰๋˜์ง€ ์•Š์œผ๋ฉด ๋Œ“๊ธ€๋กœ ์•Œ๋ ค์ฃผ์„ธ์š” !*/

 

USERTB1 ์ƒ˜ํ”Œ ๋ฐ์ดํ„ฐ

insert into usertb1 values('LSG', '์ด์Šน๊ธฐ', 1987, '์„œ์šธ', '011', '1111111', 177, '2008-8-8');
insert into usertb1 values('KHJ', '๊น€ํ˜ธ์ค‘', 1989, '๊ฒฝ๋ถ', '010', '2222222', 183, '2010-12-23');
insert into usertb1 values('PJH', '๋ฐ•์ง€ํ›ˆ', 1996, '๋Œ€์ „', '010', '3333333', 180, '2019-3-2');
insert into usertb1 values('JWI', '์žฅ์›์ต', 1997, '๊ฒฝ๋ถ', '010', '4444444', 183, '2021-1-8');
insert into usertb1 values('SHM', '์†ํฅ๋ฏผ', 1985, '์ธ์ฒœ', '011', '5555555', 186, '2003-6-15');
insert into usertb1 values('PJS', '๋ฐ•์ง€์„ฑ', 1974, '์ธ์ „', '010', '6666666', 170, '2011-3-29');
insert into usertb1 values('JIJ', '์กฐ์ธ์ค€', 1950, '์ „๋‚จ', '011', '7777777', 178, '2008-6-6');
insert into usertb1 values('KHD', '๊ฐ•ํ˜ธ๋™', 1968, '๋ถ€์‚ฐ', '010', '8888888', 183, '2013-4-17');
insert into usertb1 values('PMS', '๋ฐ•๋ฏผ์ˆ˜', 1993, '์„œ์šธ', '011', '9999999', 155, '2012-8-22');
insert into usertb1 values('LKI', '์ด๊ฐ•์ธ', 2001, '์ „๋‚จ', '070', '0000000', 176, '2001-2-13');

 

buytb1

 

์‚ฌ์šฉ์ž๊ฐ€ ๊ตฌ๋งคํ•œ ๋ชฉ๋ก์ด ๋‹ด๊ธด ํ…Œ์ด๋ธ”์ด๋‹ค.

 

์นผ๋Ÿผ๋ช…

  • num (PK) : ๊ตฌ๋งค ๋ฒˆํ˜ธ
  • userid (FK) : ๊ตฌ๋งค ์‚ฌ์šฉ์ž ๋ฒˆํ˜ธ
  • prodname : ์ƒํ’ˆ๋ช…
  • groupname : ์นดํ…Œ๊ณ ๋ฆฌ ๊ทธ๋ฃน๋ช…
  • price : ๊ธˆ์•ก
  • amount : ์ˆ˜๋Ÿ‰

 

ํ…Œ์ด๋ธ” ์ƒ์„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)
)
/*๋งŒ์•ฝ ์ฟผ๋ฆฌ๋ฌธ์ด ์‹คํ–‰๋˜์ง€ ์•Š์œผ๋ฉด ๋Œ“๊ธ€๋กœ ์•Œ๋ ค์ฃผ์„ธ์š” !*/

 

BUYTB1 ์ƒ˜ํ”Œ ๋ฐ์ดํ„ฐ

insert into buytb1 values(NULL, "LSG", "์ฑ…", null, 15, 5);
insert into buytb1 values(NULL, "JWI", "๋…ธํŠธ๋ถ", null, 1000, 1);
insert into buytb1 values(NULL, "LSG", "์šด๋™ํ™”", "์˜๋ฅ˜", 130, 5);
insert into buytb1 values(NULL, "PJH", "์ฒญ๋ฐ”์ง€", "์˜๋ฅ˜", 50, 8);
insert into buytb1 values(NULL, "KHJ", "๋ชจ์ž", "์˜๋ฅ˜", 20, 13);
insert into buytb1 values(NULL, "JIJ", "๋ชจ์ž", null, 20, 6);
insert into buytb1 values(NULL, "JWI", "ํœด๋Œ€ํฐ", "๊ฐ€์ „", 800, 1);
insert into buytb1 values(NULL, "PJH", "์ฑ…", null, 15, 10);
insert into buytb1 values(NULL, "KHJ", "์šด๋™ํ™”", "์˜๋ฅ˜", 130, 3);
insert into buytb1 values(NULL, "PJH", "๋ชจ์ž", null, 20, 3);
insert into buytb1 values(NULL, "PMS", "์šด๋™ํ™”", null, 130, 4);
insert into buytb1 values(NULL, "JIJ", "๋…ธํŠธ๋ถ", "๊ฐ€์ „", 1000, 1);
insert into buytb1 values(NULL, "KHD", "๋…ธํŠธ๋ถ", "๊ฐ€์ „", 1000, 1);
insert into buytb1 values(NULL, "PMS", "ํœด๋Œ€ํฐ", null, 800, 1);
insert into buytb1 values(NULL, "LSG", "๋…ธํŠธ๋ถ", null, 1000, 1);
insert into buytb1 values(NULL, "LKI", "์ฒญ๋ฐ”์ง€", null, 50, 2);
insert into buytb1 values(NULL, "PJH", "๋…ธํŠธ๋ถ", "๊ฐ€์ „", 1000, 1);

๋Œ“๊ธ€