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[2주차]_6장_데이터 모델링_고건 #101

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Gopistol opened this issue Jan 15, 2023 · 0 comments
Open

[2주차]_6장_데이터 모델링_고건 #101

Gopistol opened this issue Jan 15, 2023 · 0 comments
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@Gopistol
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ER모델을 관계 데이터 모델로 사상하는 과정이 중요하다고 생각해요

개체 타입의 사상

  • [1단계] 강한(정규) 개체 타입
  • [2단계] 약한 개체 타입

관계 타입의 사상

  • [3단계] 이진 1:1 관계 타입
  • [4단계] 이진 1:N 관계 타입
  • [5단계] 이진 M:N 관계 타입
  • [6단계] N진 관계 타입

다중값 속성의 사상

  • [7단계] 다중값 속성
@Gopistol Gopistol self-assigned this Jan 15, 2023
@keemsebin keemsebin changed the title [2주차]_6장_데이터 모델링_r고건 [2주차]_6장_데이터 모델링_고건 Jan 16, 2023
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