GATE 1993
Related Database Management PYQs
Consider relation R(A, B, C, D) with functional dependencies F = {A -> B, B -> C, C -> D}. What is the closure of attribute A (A+)…
If a relation schema is in 3NF and every candidate key is a single attribute (simple candidate key), then the relation is guarante…
A schedule S is defined as a view serializable schedule if:
In SQL, what is the effect of using the DISTINCT keyword in a SELECT clause?
Two operations in a schedule are said to conflict if they belong to different transactions, access the exact same data item, and:
Let P, Q, R and S be the attributes of a relation in a relational schema. Let X → Y indicate functional dependency in the context …
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