Relational Database Management System Mcqs
Page No. 40
Which of the following set operations is not commutative?
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Which of the following operations are associative
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State true or false: Selection operations are commutative
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The size of a _____ is simply V(A,r) where r is the relation and A is a distinct value
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Size estimation can be done for which of the following processes?
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State true or false: Estimation of the size of the result of a join is not possible
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The union of all records satisfying the individual simple conditions Oi is called as ________
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The ________ SQL command generates statistics on a particular relation
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