Question: E xercise 5.4.2: Let R (x ,y ,z ) be a relation. Write one or more Datalog rules that define Select Operatorc{R), where C stands

E xercise 5.4.2: Let R (x ,y ,z ) be a relation. Write one or more Datalog rules that define "Select Operator"c{R), where C stands for each of the following conditions:

d) NOT (x < y OR x > y).

f) NOT ((x < y OR x < z) AND y < z).

Textbook: Database Systems: The Complete Book by Hector Garcia-Molina, Jeffrey D. Ullman and Jennifer Widom

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