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Author Question: A rule that states that each foreign key value must match a primary key value in the other relation ... (Read 8 times)

karlynnae

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A rule that states that each foreign key value must match a primary key value in the other relation is called the:
 
  A) referential integrity constraint.
  B) key match rule.
  C) entity key group rule.
  D) foreign/primary match rule.

Question 2

When a regular entity type contains a multivalued attribute, one must:
 
  A) create a single relation with multiple lines for each instance of the multivalued attribute.
  B) create two new relations, one containing the multivalued attribute.
  C) create two new relations, both containing the multivalued attribute.
  D) delete the relation and start over.


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Ddddd

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karlynnae

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Reply 2 on: Jul 7, 2018
Gracias!


raili21

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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