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bompeach 2023. 8. 11. 13:08

Q)

BOOK ํ…Œ์ด๋ธ”์—์„œ 2021๋…„์— ์ถœํŒ๋œ '์ธ๋ฌธ' ์นดํ…Œ๊ณ ๋ฆฌ์— ์†ํ•˜๋Š” ๋„์„œ ๋ฆฌ์ŠคํŠธ๋ฅผ ์ฐพ์•„์„œ ๋„์„œ ID(BOOK_ID), ์ถœํŒ์ผ (PUBLISHED_DATE)์„ ์ถœ๋ ฅํ•˜๋Š” SQL๋ฌธ์„ ์ž‘์„ฑํ•ด์ฃผ์„ธ์š”.
๊ฒฐ๊ณผ๋Š” ์ถœํŒ์ผ์„ ๊ธฐ์ค€์œผ๋กœ ์˜ค๋ฆ„์ฐจ์ˆœ ์ •๋ ฌํ•ด์ฃผ์„ธ์š”.

 

A)

--MYSQL
SELECT BOOK_ID, DATE_FORMAT(PUBLISHED_DATE, '%Y-%m-%d') AS PUBLISHED_DATE
FROM BOOK
WHERE DATE_FORMAT(PUBLISHED_DATE, '%Y') = '2021'
AND CATEGORY = '์ธ๋ฌธ'
ORDER BY PUBLISHED_DATE ASC