What does a TRC query mean? More precisely, what is the set of answer tuples for a given TRC query? The answer to a TRC query {T| p(T)}, as we noted earlier, is the set of all tuples t for which the formula p(T) evaluates to true with variable T assigned the tuple value t. To complete this definition, we must state which assignments of tuple values to the free variables in a formula make the formula evaluate to true.

What does a TRC query mean? More precisely, what is the set of answer tuples for a given TRC query? The answer to a TRC query {T| p(T)}, as we noted earlier, is the set of all tuples t for which the formula p(T) evaluates to true with variable T assigned the tuple value t. To complete this definition, we must state which assignments of tuple values to the free variables in a formula make the formula evaluate to true.

Programming with Microsoft Visual Basic 2017

8th Edition

ISBN:9781337102124

Author:Diane Zak

Publisher:Diane Zak

Chapter12: Database Queries With Sql

Section: Chapter Questions

Problem 1MQ2

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