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0. Consider the following relations P(X,Y,Z), Q(X,Y,T) and R(Y,V). P Q RXYZ XYT YVX1Y1Z1 X2Y12 Y1V1X1Y1Z2 X1Y25 Y3V2X2Y2Z2 X1Y16 Y2V3X2Y4Z4 X3Y31 Y2V2 How many tuples will be returned by the following relational algebra query? πx(σ(P.Y = R.Y ∧ R.V = V2)(P X R)) - πx(σ(Q.Y = R.Y ∧ Q.T > 2(Q X R)) Note – Numerical Type question
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