๐Ÿ“ ์•Œ๊ณ ๋ฆฌ์ฆ˜/Programmers - SQL

[MySQL/PGS] Lv.2 : ์›”๋ณ„ ์žก์€ ๋ฌผ๊ณ ๊ธฐ ์ˆ˜ ๊ตฌํ•˜๊ธฐ

xxilliant 2025. 5. 31. 16:14
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https://school.programmers.co.kr/learn/courses/30/lessons/293260

 

ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค

SW๊ฐœ๋ฐœ์ž๋ฅผ ์œ„ํ•œ ํ‰๊ฐ€, ๊ต์œก์˜ Total Solution์„ ์ œ๊ณตํ•˜๋Š” ๊ฐœ๋ฐœ์ž ์„ฑ์žฅ์„ ์œ„ํ•œ ๋ฒ ์ด์Šค์บ ํ”„

programmers.co.kr


ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ๋ ˆ๋ฒจ 2.

sql group by ๋ฌธ์ œ. ๋‚ ์งœ์—์„œ month๋งŒ ์ถ”์ถœํ•˜๋Š” ํ•จ์ˆ˜ ์‚ฌ์šฉ!

 

๋‚˜์˜ ํ’€์ด

select count(*) as FISH_COUNT, MONTH(TIME) as MONTH
from FISH_INFO
group by MONTH(TIME)
order by MONTH(TIME);

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