Concept of Keys, Strong/Week Entity Sets and Relationship Constraints



Related Lessons in this Series


In this 33 mins Video Lesson :
Introduction, Entity, Entity Set, Entity Type, Attributes, Null Values, Relationships, and other topics.


In this 38 mins Video Lesson :
Super keys, Candidiate Keys, Primary Keys, Weak Entity Set, Partial Key / Discriminator, Constraints On Relationships, and other topics.


In this 27 mins Video Lesson :
ER Notations, ER Model to Tables, Strong Entity Set (Including Multivalued and Composite Attr.), Weak Entity Set, Relationship Set, and other topics.


In this 33 mins Video Lesson :
Introduction, Specialization, Generalization, Constraints on Specialization, Hierarchies and Lattice, Categories and Unions, and other topics.


In this 18 mins Video Lesson :
Aggregation, EER Model to tables, Specialization, Category to tables, and other topics.


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