Suppose the user finds the usage of room number and phone number in a

1.
Suppose the user finds the usage of room number and phone number in a relational schema there is confusion.This is reduced by

A. Unique-role assumption

B. Unique-key assignment

C. Role intergral assignment

D. None of the mentioned

Answer» B. Unique-key assignment

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RELATION_DEPT_YEAR(DEPT_NAME,_TOTAL_INST_2007,_TOTAL_INST_2008,_TOTAL_INST_2009)._HERE_THE_ONLY_FUNCTIONAL_DEPENDENCIES_ARE_FROM_DEPT_NAME_TO_THE_OTHER_ATTRIBUTES._THIS_RELATION_IS_IN?$

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Suppose the user finds the usage of room number and phone number in a relational schema there is confusion.This is reduced by

In which of the following, a separate schema is created consisting of that attribute and the primary key of the entity set.

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1.	Suppose the user finds the usage of room number and phone number in a relational schema there is confusion.This is reduced by
A.	Unique-role assumption
B.	Unique-key assignment
C.	Role intergral assignment
D.	None of the mentioned
Answer» B. Unique-key assignment

Suppose the user finds the usage of room number and phone number in a relational schema there is confusion.This is reduced by

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