Question: R1 ( A, B, C ) , with |R1 | = 100 and a referential integrity constratin between C and R2 EXERCISE4 1 . PROJ

R1 ( A, B, C ) , with |R1 | =

R1 ( A, B, C ) , with |R1 | = 100 and a referential integrity constratin between C and R2

EXERCISE4 1 . PROJ A, B (RI) 2. PROJE (R2) , Ri ( , B, C ) , with IRI 100 and a referential integrity constratin between C and R2 R2 (D, E, F), with IR00 4. PROJ G(R3) and a referential integrity constratin between F and R3 6. R, JOINCDR2 7. R3 JOIN-AR R (G, H, I), with | R3l 50 following expressions

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