ZYX COMPANY
Observe the ER diagram for the ZYX COMPANY:
This ER diagram will be used for the following questions citing ZYX Company ER Diagram.
-During mapping of the ZYX Company ERD into a relational schema,attribute CellPhoneNumber from the ZYX Company ER diagram will be mapped as a column of the relation EMPLOYEE.
Correct Answer:
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Q90: ZYX COMPANY
Observe the ER diagram for the
Q91: ZYX COMPANY
Observe the ER diagram for the
Q92: What is a relational database a collection
Q93: What is a business rule?
Q94: Use an example to illustrate how M:N
Q95: ZYX COMPANY
Observe the ER diagram for the
Q96: Give a definition of referential integrity constraint.
Q97: Give a definition of entity integrity constraint.
Q98: What is a foreign key?
Q100: ZYX COMPANY
Observe the ER diagram for the
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