Database Systems – Design, Implementation, and Management – Chapter 3 – The Relational Database

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Database Systems: Design, Implementation, and
Management – Chapter 3: The Relational Database
Model Flashcards




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candidate key


A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a
superkey.


closure


A property of relational operators that permits the use of relational algebra operators on
existing tables to produce new relations.


composite entity


An entity designed to transform an M:N relationship into two 1:M relationships. The
composite entity's primary key comprises at least the primary keys of the entities that it
connects.




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