Question: Write an extended relational-algebra view equivalent to the Datalog rule p (A,C,D) : q1 (A,B), q2 (B,C), q3 (4,B), D = B + 1 .

Write an extended relational-algebra view equivalent to the Datalog rule p (A,C,D) :– q1 (A,B), q2 (B,C), q3 (4,B), D = B + 1 .

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