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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
With respect to relational algebra, which of the following operations are included for mathematical set theory?
$(a)$ Join
$(b)$ Intersection
$(c)$ Cartesian product
$(d)$ Project
Solution
In relational algebra, some operations are based on mathematical set theory.
Intersection is a set operation.
Cartesian product is also a set operation.
Join and project are relational algebra operations, but they are not basic mathematical set theory operations.
So, the operations included for mathematical set theory are:
$(b)$ Intersection
$(c)$ Cartesian product
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