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์˜ค๋Š˜์˜ ๋ช…์–ธ
" ์‹ ์€ ์ธ์ƒ์—์„œ ์ตœ๊ณ ์˜ ๊ฒƒ๋“ค์„ ํ•ญ์ƒ ๋‘๋ ค์›€ ๋’ค์— ๋†“์Šต๋‹ˆ๋‹ค. "
- ์œŒ ์Šค๋ฏธ์Šค (์˜ํ™” ๋ฐฐ์šฐ)
๐Ÿ“‘ 1. ๋ฃจ์‹œ์™€ ์—˜๋ผ ์ฐพ๊ธฐ โญ ์ •๋‹ต์ฝ”๋“œSELECT ANIMAL_ID, NAME, SEX_UPON_INTAKEFROM ANIMAL_INSWHERE NAME IN ('Lucy','Ella','Pickle','Rogan','Sabrina','Mitty')๐Ÿ“‘ 2. ํ•œ ํ•ด์— ์žก์€ ๋ฌผ๊ณ ๊ธฐ์ˆ˜ ๊ตฌํ•˜๊ธฐโญ ์ •๋‹ต์ฝ”๋“œCOUNT(ID)์— `FISH_COUNT` ๋ผ๋Š” ๋ณ„์นญ์„ ์ฃผ์–ด์•ผ ํ•จ๋ฌธ์ œ ์˜ˆ์‹œ์—์„œ DATE ํ˜•์‹์ด 'YYYY/MM/DD'๋กœ ๋˜์–ด ์žˆ๋Š” ๊ฑธ ๋ณด๊ณ  ์•ฝ๊ฐ„ ๋ณต์žกํ•˜๊ฒŒ ํ’€์—ˆ๋‹ค.SELECT COUNT(ID) AS FISH_COUNTFROM FISH_INFOWHERE DATE_FORMAT(Time, '%Y/%m/%d') LIKE '2021%' ๋‹ค๋ฅธ ์‚ฌ๋žŒ๋“ค์ด ํ’€์ดํ•œ ๊ฒƒ์„ ํ™•์ธํ–ˆ๋Š”๋ฐ ๋” ๊ฐ„๋‹จํ•˜๊ฒŒ ์ฟผ๋ฆฌ๋ฅผ ์ž‘์„ฑํ•  ์ˆ˜ ์žˆ๋‹ค. ์ด ๋ฌธ์ œ๋Š”..
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