What is Relational Algebra?

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What is Relational Algebra?

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Relational Algebra is a procedural language. It provides various operations to manipulate relations. The basic operations include union, difference, and intersection. These operations are performed on the relations, and the result obtained from these operations is also a relation. For example, a relation, A and B, and the result of union operation on the two are also given below:

Table A
Id Name
101Jones
102Mark
Table B
Id Name
103Evan
104Smith

Result=AUB
IdName
101Jones
102Mark
103Evan
104Smith


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