March 14, 2025

GATE 2008

Question 15 Which of the following tuple relational calculus expression(s) is/are equivalent to ∀t ∈ r(P(t))? I. ¬∃t ∈ r(P(t)) II. ∃t ∉ r(P(t)) III. ¬∃t ∈ r(¬P(t)) […]
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March 14, 2025

GATE 2008

Question 16 A clustering index is defined on the fields which are of type A non-key and ordering B non-key and non-ordering C key and ordering […]
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March 19, 2025

GATE 2002

Question 20 With regard to the expressive power of the formal relational query languages, which of the following statements is true? A Relational algebra is more […]
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March 30, 2025

NTA UGC NET Dec 2024 Paper-2

Question 8 What will be the right sequence of the phases of database design- A. Physical Design,br> B. Conceptual Design C. Logical Design D. Requirement collection […]
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