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Answer to Question #75639 in Databases | SQL | Oracle | MS Access for Jonny

Question #75639
When mapping a Conceptual Model to a Relational Model, a simple identifier maps to ...


a composite attribute.


a column.


a simple attribute.


a simple key.
Expert's answer
a simple key

A simple identifier consists of one attributŠµ and uniquely identifies an instance of the entity. When mapping a Conceptual Model to a Relational Model, a simple identifier maps to a simple key. Simple key consists of one column and uniquely identifies a row.

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