Database question: Assume we have an instance of R(A, B, C) as given in the following...

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Answer 1

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R4------- Natural JOIN of R1 and R2

A	B	C
a1	b1	c1
a2	b2	c2
a3	b3	c3
a4	b4	c4
a5	b5	c5

R5 ----------------------- CARTESIAN PRODUCT of R2 and R3

A	C	B
a1	c1	b1
a1	c1	b2
a1	c1	b3
a1	c1	b4
a1	c1	b5
a2	c2	b1
a2	c2	b2
a2	c2	b3
a2	c2	b4
a2	c2	b5
a3	c3	b1
a3	c3	b2
a3	c3	b3
a3	c3	b4
a3	c3	b5
a4	c4	b1
a4	c4	b2
a4	c4	b3
a4	c4	b4
a4	c4	b5
a5	c5	b1
a5	c5	b2
a5	c5	b3
a5	c5	b4
a5	c5	b5

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Answer 2

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A	C	B
a1	c1	b1
a1	c1	b2
a1	c1	b3
a1	c1	b4
a1	c1	b5
a2	c2	b1
a2	c2	b2
a2	c2	b3
a2	c2	b4
a2	c2	b5
a3	c3	b1
a3	c3	b2
a3	c3	b3
a3	c3	b4
a3	c3	b5
a4	c4	b1
a4	c4	b2
a4	c4	b3
a4	c4	b4
a4	c4	b5
a5	c5	b1
a5	c5	b2
a5	c5	b3
a5	c5	b4
a5	c5	b5

A	C	B
a1	c1	b1
a1	c1	b2
a1	c1	b3
a1	c1	b4
a1	c1	b5
a2	c2	b1
a2	c2	b2
a2	c2	b3
a2	c2	b4
a2	c2	b5
a3	c3	b1
a3	c3	b2
a3	c3	b3
a3	c3	b4
a3	c3	b5
a4	c4	b1
a4	c4	b2
a4	c4	b3
a4	c4	b4
a4	c4	b5
a5	c5	b1
a5	c5	b2
a5	c5	b3
a5	c5	b4
a5	c5	b5

Database question: Assume we have an instance of R(A, B, C) as given in the following...

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Add Answer to:
Database question: Assume we have an instance of R(A, B, C) as given in the following...

A	C	B
a1	c1	b1
a1	c1	b2
a1	c1	b3
a1	c1	b4
a1	c1	b5
a2	c2	b1
a2	c2	b2
a2	c2	b3
a2	c2	b4
a2	c2	b5
a3	c3	b1
a3	c3	b2
a3	c3	b3
a3	c3	b4
a3	c3	b5
a4	c4	b1
a4	c4	b2
a4	c4	b3
a4	c4	b4
a4	c4	b5
a5	c5	b1
a5	c5	b2
a5	c5	b3
a5	c5	b4
a5	c5	b5