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[서희] 유형2: LEFT OUTER JOIN & 유형3: CROSS JOIN#6

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[서희] 유형2: LEFT OUTER JOIN & 유형3: CROSS JOIN#6
seohee-P wants to merge 5 commits intomainfrom
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  • 👀 파일명 형식에 맞게 작성하였는가?
  • 🙆🏻 해당 유형의 모든 문제를 풀었는가?
  • 🔖 라벨은 등록했는가? ex. sql, chapter01

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@seohee-P seohee-P requested review from fanfanduck and mango606 March 10, 2026 18:13
@seohee-P seohee-P self-assigned this Mar 10, 2026
@seohee-P seohee-P added the sql SQL 실전 트레이닝 label Mar 10, 2026
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저도 JOIN에서 WHERE랑 ON 헷갈렸어요. SQL에서 NULL은 어떤 값과도 비교가 안 돼서 b.bonus IS NULL 조건을 추가한 것이 중요한 부분인 것 같아요.

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[26년 03월 02주차] 유형2: LEFT OUTER JOIN & 유형3: CROSS JOIN

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