11-28-15, 13:25 #1Registered User
- Join Date
- Nov 2015
Why is a weak entity set supposed to have many-to-one rel. to the owner entity set?
This question is related to the theoretical E-R data model.
I was reading Korth, and it is written that a weak entity set is supposed to have many-to-one relationship to the owner/identifying entity set?
Can any one explain me the conceptual basis of this constraint?