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mysql2

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] MYSQL - String, Date [ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] MYSQL - String, Date 1. ๋ฃจ์‹œ์™€ ์—˜๋ผ ์ฐพ๊ธฐ https://school.programmers.co.kr/learn/courses/30/lessons/59046 ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋“œ ์ค‘์‹ฌ์˜ ๊ฐœ๋ฐœ์ž ์ฑ„์šฉ. ์Šคํƒ ๊ธฐ๋ฐ˜์˜ ํฌ์ง€์…˜ ๋งค์นญ. ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค์˜ ๊ฐœ๋ฐœ์ž ๋งž์ถคํ˜• ํ”„๋กœํ•„์„ ๋“ฑ๋กํ•˜๊ณ , ๋‚˜์™€ ๊ธฐ์ˆ  ๊ถํ•ฉ์ด ์ž˜ ๋งž๋Š” ๊ธฐ์—…๋“ค์„ ๋งค์นญ ๋ฐ›์œผ์„ธ์š”. programmers.co.kr -- ์ฝ”๋“œ๋ฅผ ์ž…๋ ฅํ•˜์„ธ์š” SELECT ANIMAL_ID, NAME, SEX_UPON_INTAKE FROM ANIMAL_INS WHERE NAME IN ('Lucy','Ella','Pickle','Rogan','Sabrina','Mitty'); 2. ์ด๋ฆ„์— el์ด ๋“ค์–ด๊ฐ€๋Š” ๋™๋ฌผ ์ฐพ๊ธฐ https://school.programm.. 2022. 7. 25.
[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] MYSQL - JOIN [ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] MYSQL - JOIN 1. ์—†์–ด์ง„ ๊ธฐ๋ก ์ฐพ๊ธฐ https://school.programmers.co.kr/learn/courses/30/lessons/59042 ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋“œ ์ค‘์‹ฌ์˜ ๊ฐœ๋ฐœ์ž ์ฑ„์šฉ. ์Šคํƒ ๊ธฐ๋ฐ˜์˜ ํฌ์ง€์…˜ ๋งค์นญ. ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค์˜ ๊ฐœ๋ฐœ์ž ๋งž์ถคํ˜• ํ”„๋กœํ•„์„ ๋“ฑ๋กํ•˜๊ณ , ๋‚˜์™€ ๊ธฐ์ˆ  ๊ถํ•ฉ์ด ์ž˜ ๋งž๋Š” ๊ธฐ์—…๋“ค์„ ๋งค์นญ ๋ฐ›์œผ์„ธ์š”. programmers.co.kr SELECT A.ANIMAL_ID,A.NAME FROM ANIMAL_OUTS A LEFT JOIN ANIMAL_INS B ON A.ANIMAL_ID = B.ANIMAL_ID WHERE B.ANIMAL_ID IS NULL ORDER BY ANIMAL_ID 2. ์žˆ์—ˆ๋Š”๋ฐ์š” ์—†์—ˆ์Šต๋‹ˆ๋‹ค https://school.programmers.co.k.. 2022. 7. 23.

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