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Consider the datalog program P defined as follows: par (X,Z), par(Z,Y). par (X,Z), par(Z,W), par(W,Y). r(X,Y) :- s (X,Y) :- (a). Given the facts
Consider the datalog program P defined as follows: par (X,Z), par(Z,Y). par (X,Z), par(Z,W), par(W,Y). r(X,Y) :- s (X,Y) :- (a). Given the facts r(0,1) and s (1,2), determine all possible tuples derived in "par", and justify your answer. (b). Express P in (1) Relational Algebra and in (2) Domain Relational Calculus (DRC) languages.
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Federal Taxation 2016 Comprehensive
Authors: Thomas R. Pope, Timothy J. Rupert, Kenneth E. Anderson
29th Edition
134104374, 978-0134104379
