REA Models and Relational Databases Flashcards Preview

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Flashcards in REA Models and Relational Databases Deck (4)
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1
Q

WHAT IS REA?

A

1) resource
2) Event
3) Agent

2
Q

What are data elements?

A

also called attributes that describe the characteristics of instances in a class

3
Q

What are primary keys?

A

1) uniquely define instances of the class

CANNOT be a NULL ( BLANK)

4
Q

What are foreign keys?

A

1) Support the links between classes shown in the association, and other data elements for each class