Mathematics, 14.06.2020 00:57 ashleytapiamo

: Let R(A, B,C, D) be a relation, where (A, B) is the Primary Key for R, attribute C is Unique and can be NULL, and attribute D is Unique and cannot be NULL. Attribute A’s domain has 3 different values, B’s domain has 8 different values, C’s domain has 5 different values, and D’s domain has 10 different values. What is the maximum number of different tuples that can be in an instance of R?

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: Let R(A, B,C, D) be a relation, where (A, B) is the Primary Key for R, attribute C is Unique and c...