March 6, 2024
Question 9 State True or False with reason There is always a decomposition into Boyce-Codd normal form (BCNF) that is lossless and dependency preserving. A True […]
March 6, 2024
Question 12 An instance of a relational scheme R(A, B, C) has distinct values for attribute A. Can you conclude that A is a candidate key […]
March 6, 2024
Question 10 State True or False with reason Logical data independence is easier to achieve than physical data independence A True B False Database-Management-SystemGeneralGATE 1994 Question […]
March 6, 2024
Consider the first-order logic sentence F: ∀x(∃yR(x,y)). Assuming non-empty logical domains, which of the sentences below are implied by F? I. ∃y(∃xR(x,y)) II. ∃y(∀xR(x,y)) III. ∀y(∃xR(x,y)) […]
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