GATE 1992
In SQL, which clause is evaluated immediately after the WHERE clause during logical query processing?
The project operator (π) in relational algebra is used for:
A dense index has an index entry for:
Which relational algebra operation returns all tuples belonging to relation R, relation S, or both, removing duplicates?
Lossless-join decomposition of a relation schema R into R1 and R2 guarantees that:
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 …
In the context of relational database normalization, which of the following statements is/are true?
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