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RDBMS FUNDAMENTALS - INTERPRETING DATA - Entities
RDBMS FUNDAMENTALS Interview Questions and Answers
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RDBMS FUNDAMENTALS - INTERPRETING DATA - Entities
Entity : An entity is an object that exists in the real world and is distinguishable from other objects. Each entity is represented as a table in a relational database.
Types of Entities : Entities can be classified in two ways - based on existence and based on subsets.
Based on existence, entities can be classified as Dominant and Weak entities.
Based on subsets, entities can be classifies as Supertypes and Subtypes.
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