Topic 04, Part 09 - Strong vs. Weak Entities

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  • Опубликовано: 18 янв 2025

Комментарии • 9

  • @armenpoghosyan4998
    @armenpoghosyan4998 Год назад +2

    What a great example. Thank you!

  • @dianawinkel1088
    @dianawinkel1088 Год назад +1

    this video is the best explanation fo a weak entity!!!! thanks for the clear explanation

  • @milanneven6134
    @milanneven6134 Год назад +2

    This was well explained. Thanks!

  • @jacobluttrull1470
    @jacobluttrull1470 10 месяцев назад

    thank you very much!

  • @jeremygl1569
    @jeremygl1569 3 месяца назад +1

    Its too bad that youre mixing up two different and unrelated models. Strong vs weak entities belong to conceuptual models, where there are no FKs cuz they belong to databases. Therefore, youre explaning us conceptual model concepts on a relational database model, which is completely wrong. Conceptual models are in a higher bird's eye view than relational DB model.

    • @perhvarnes
      @perhvarnes 3 месяца назад

      Could one say that any table with a FK (in a conceptual model) would be the same as a weak entity (in a relationship model)?

    • @jeremygl1569
      @jeremygl1569 2 месяца назад

      @@perhvarnes No. Because a strong entity, as a relationship database, could include FKs. A weak entity has no identifier, like a strong entity has, therefore its called 'weak'. A weak entity only consists of FKs. Like Students -> subscriptions (weak)

  • @Vernon-nv3zr
    @Vernon-nv3zr Год назад

    Is order entity weak or strong?

    • @rajsandhu3344
      @rajsandhu3344 3 месяца назад

      Where did you get `order` from?