For each employee middle initial is optional is an example of an implicit database constraint.
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Q61: GENERIC ERD
Observe the GENERIC ER Diagram below:
Q62: The relation resulting from mapping a weak
Q63: An entity and its 1:1 unary relationship
Q64: A restriction specifying that no salary entered
Q65: GENERIC ERD
Observe the GENERIC ER Diagram below:
Q67: GENERIC ERD
Observe the GENERIC ER Diagram below:
Q68: ZYX COMPANY
Observe the ER diagram for the
Q69: Every attribute appears only once in an
Q70: When an entity has multiple unique attributes,each
Q71: GENERIC ERD
Observe the GENERIC ER Diagram below:
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