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State true or false: Specialization can be applied only once(a) True(b) FalseThis question was posed to me by my school principal while I was bunking the class.My query is from Extended E-R Features in portion Database Design and the ER Model of RDBMS

Answer»

The correct OPTION is (a) True

The EXPLANATION: We can apply specialization multiple TIMES to REFINE a design. An ENTITY set may also be specialized by more than one distinguishing feature.



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