Relational Algebra is a __________ query language that takes two relations as input and produces another relation as an output of the query.a.Fundamentalb.Relationalc.Structurald.Procedural

What is relational algebra?Select one:a.The mathematical basis for SQLb.A language used to store data in a databasec.The translation of a query by an SQL compilerd.An informal way to describe how a database works

Which one of the following is a procedural language ?Domain relational calculusTuple relational calculusRelational algebraQuery language

Which of the following is NOT an operation in relational algebra?

What does the projection operation in relational algebra do?a.Produces a new relation containing tuples that appear in both input relationsb.Retrieves specific rows from a relationc.Retrieves specific columns from a relationd.Combines tuples from two relations based on a common attribute

What is the purpose of relational algebra in database management systems?a.To manipulate and query data stored in relational databasesb.To optimize database performancec.To define database schemasd.To design user interfaces for databases