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[level 4] Title: 입양 시각 구하기(2), Time: 0.00 ms, Memory: 0.0 MB -BaekjoonHub
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프로그래머스/4/59413. 입양 시각 구하기(2)/README.md

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### 제출 일자
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2026년 02월 02일 23:52:42
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2026년 02월 02일 23:56:31
2020

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### 문제 설명
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SET @hour := -1;
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SET @hour = -1;
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SELECT
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(@hour := @hour + 1) AS HOUR,
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(SELECT COUNT(*)
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FROM ANIMAL_OUTS
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WHERE HOUR(DATETIME) = @hour) AS COUNT
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(@hour := @hour + 1) as HOUR,
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(SELECT COUNT(*)
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FROM ANIMAL_OUTS
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WHERE HOUR(DATETIME) = @hour) as COUNT
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FROM ANIMAL_OUTS
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WHERE @hour < 23
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WHERE @hour < 23
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ORDER BY @hour

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