21.02.25 (๋ชฉ)
Updated:
์ค๋ ํ ์ผ (๊ณํ)
์ด๊ฒ์ด ์ฝ๋ฉ ํ ์คํธ๋ค ๊ตฌํ ์์ ํ๊ธฐํ๋ก๊ทธ๋๋จธ์ค ๋ ๋ฒจ 3 ๋ฌธ์ ํ๊ธฐSQL ๋ฌธ์ ํ๊ธฐ- ์ ๋ณด์ฒ๋ฆฌ๊ธฐ์ฌ ์ฑ ํ์ด๋ณด๊ธฐ
- FIFA-Online-TMI
์ค๋ ํ ์ผ
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์ด๊ฒ์ด ์ฝ๋ฉ ํ ์คํธ๋ค ๊ตฌํ ์์ ํ๊ธฐ
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ํ๋ก๊ทธ๋๋จธ์ค ๋ ๋ฒจ 3 ๋ฌธ์ ํ๊ธฐ
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SQL ๋ฌธ์ ํ๊ธฐ
- SELECT ANIMAL_TYPE, COUNT(ANIMAL_TYPE) count FROM ANIMAL_INS GROUP BY ANIMAL_TYPE ORDER BY ANIMAL_TYPE ASC
- SELECT NAME, COUNT(NAME) COUNT FROM ANIMAL_INS GROUP BY NAME HAVING COUNT(NAME) >= 2 ORDER BY NAME ASC
- SELECT HOUR(DATETIME) as HOUR, COUNT(HOUR(DATETIME)) as COUNT FROM ANIMAL_OUTS GROUP BY HOUR HAVING HOUR BETWEEN 9 and 19 ORDER BY HOUR ASC
๋ด์ผ ํ ์ผ
- ์ด๊ฒ์ด ์ฝ๋ฉ ํ ์คํธ๋ค ์์ ํ๊ธฐ
- ํ๋ก๊ทธ๋๋จธ์ค ๋ ๋ฒจ 3 ๋ฌธ์ ํ๊ธฐ
- SQL ๋ฌธ์ ํ๊ธฐ
์ด๋ฒ์ฃผ ํ ์ผ
- ์ด๊ฒ์ด ์ฝ๋ฉ ํ ์คํธ๋ค ๋ฌธ์ ํ๊ธฐ
- FIFA-Online-TMI
- SQL ๋ฌธ์ ํ๊ธฐ
- ์ ๋ณด์ฒ๋ฆฌ๊ธฐ์ฌ ํ๊ธฐ ๊ณต๋ถ
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