Define universal relation? Give example.

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Nazia Khanum

A universal relation in the context of relational databases refers to a relation (or table) that contains all possible combinations of tuples from the sets involved. In simpler terms, it includes every possible pair of elements from its constituent sets. For example, let's consider a universal relation...
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A universal relation in the context of relational databases refers to a relation (or table) that contains all possible combinations of tuples from the sets involved. In simpler terms, it includes every possible pair of elements from its constituent sets. For example, let's consider a universal relation that represents the Cartesian product of the sets A = {1, 2} and B = {x, y}. The universal relation would contain all possible combinations of elements from A and B: yaml Universal Relation: (1, x) (1, y) (2, x) (2, y) In this example, the universal relation contains all possible combinations of elements from set A and set B. read less
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Relations and Functions: Class 12
Relation: A relation, R, from a non-empty set A to another non-empty set B, is mathematically defined as an arbitrary subset of the cartesian product of A and B. Domain, Range and Co-domain of the Relation...

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