What is join operation in relational algebra?

FUNDAMENTAL OPERATION IN RELATIONAL ALGEBRA ARE: ? Selection ? Projection ? Union ? Set Difference ? Cartesian Product ? Join. JOIN ? The JOIN operation is denoted by the R|X|S symbol and is used to compound similar tuples from two Relations into single longer tuples.Click to see full answer. Keeping this in consideration, what is the role of JOIN operation in relational algebra?Join Operations: A Join operation combines related tuples from different relations, if and only if a given join condition is satisfied. It is denoted by ⋈.Also Know, what is join operation? A join is an SQL operation performed to establish a connection between two or more database tables based on matching columns, thereby creating a relationship between the tables. There are different types of joins. Hereof, what are the relational algebra operations? Relational Algebra. Relational algebra is a procedural query language, which takes instances of relations as input and yields instances of relations as output. It uses operators to perform queries. An operator can be either unary or binary. They accept relations as their input and yield relations as their output.What is Cartesian product operation in relational algebra?The Cartesian Product is also an operator which works on two sets. It is sometimes called the CROSS PRODUCT or CROSS JOIN. It combines the tuples of one relation with all the tuples of the other relation.