Database Lesson #4 of 8 - Data Modeling and the ER Model
370.8 هزار بار بازدید -
11 سال پیش
-
Dr. Soper gives a lecture
Dr. Soper gives a lecture on data modeling and the entity-relationship (ER) model. Topics include the components of ER models, depicting entities, attributes, relationships, and cardinalities in ER models, one-to-one, one-to-many, and many-to-many relationships, strong and weak entities, identifying and non-identifying relationships, supertypes and subtypes, and recursive relationships in data models.
11 سال پیش
در تاریخ 1392/03/29 منتشر شده
است.
370,835
بـار بازدید شده