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Author Question: How many tables are needed to implement an REA data model that has six distinct entities, three M:N ... (Read 29 times)

michelleunicorn

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Question 1

Concatenated keys are
◦ used when combining two or more REA diagrams.
◦ foreign keys used to implement 1:N or 1:1 relationships.
◦ multiple attribute keys used to implement 1:M relationships.
◦ used to implement M:N relationships.

Question 2

How many tables are needed to implement an REA data model that has six distinct entities, three M:N relationships and four 1:N relationships in a relational database?
◦ 6
◦ 9
◦ 11
◦ 13


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Marked as best answer by michelleunicorn on Apr 8, 2019

ebenov

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michelleunicorn

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Reply 2 on: Apr 8, 2019
Gracias!


lkanara2

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Reply 3 on: Yesterday
Excellent

 

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