I have to design a Relation DB using E-R diagram.
But i stuck up in one scenario: 1. How to map into relational design if a weak entity(say Subject) is dependent on another weak entity(say Section). 2. Section depends on Regular Entity (say Class). [This part is done.]
Also, i would like to know that mostly i have seen that Subjects are related to Student entity, but if i see in real world, i see it like "Student studies in Section and Subjects are taught in Section"
asked 24 May '13, 16:50