Which of these operations constitute a basic set of operations for…
2022
Which of these operations constitute a basic set of operations for manipulating relational data?
Answer: C. Relational algebra — Relational algebra is a procedural query language that provides a basic set of operations for manipulating relational data in a database. Operations such as:…
- A.
Predicate calculus
- B.
Relational calculus
- C.
Relational algebra
- D.
None of these
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Correct answer: C
Relational algebra is a procedural query language that provides a basic set of operations for manipulating relational data in a database. Operations such as:
Selection (σ)
Projection (π)
Union (∪)
Set Difference (−)
Cartesian Product (×)
Join (⨝)
are fundamental operations used to retrieve and manipulate data in relational databases.
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