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- Cardinality of a relation
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Classroom Contents
Relational Model Explained - DBMS for Placements
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- 1 - Introduction
- 2 - Promo
- 3 - What is Relation, its attributes, tuple?
- 4 - Degree of a relation
- 5 - Cardinality of a relation
- 6 - Designing Database schema using ER model and Relational Model
- 7 - What are RDBMS?
- 8 - Properties of Relation/Table in Relational Model
- 9 - Relational Keys, Super Key, Candidate Key, Primary Key, Alternate Key.
- 10 - What is Foreign Key?
- 11 - Composite Key, Compound Key
- 12 - What is Surrogate Key?
- 13 - Why Integrity Constraints?
- 14 - Domain Constraints
- 15 - Entity Constraints
- 16 - Referential Constraints
- 17 - Can Foreign Key have NULL values?
- 18 - Key Constraints
