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प्रश्न
In MYSQL database, if a table, Alpha has degree 5 and cardinality 3, and another table, Beta has degree 3 and cardinality 5, what will be the degree and cardinality of the Cartesian product of Alpha and Beta?
विकल्प
5, 3
8, 15
3, 5
15, 8
MCQ
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उत्तर
8, 15
Explanation:
In case of Cartesian product, Degree of resultant is D1 + D2, and Cardinality is C1 × C2.
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Using Two Relations in Query
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