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 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)
What a great example. Thank you!
this video is the best explanation fo a weak entity!!!! thanks for the clear explanation
This was well explained. Thanks!
thank you very much!
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.
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)?
@@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)
Is order entity weak or strong?
Where did you get `order` from?