Relational Algebra-

 

Relational Algebra is a procedural query language which takes a relation as an input and generates a relation as an output.

 

Relational Algebra Operators-

 

The operators in relational algebra may be classified as-

 

 

We will discuss all these operators one by one in detail.

 

Characteristics-

 

Following are the important characteristics of relational operators-

 

• Relational Operators always work on one or more relational tables.
• Relational Operators always produce another relational table.
• The table produced by a relational operator has all the properties of a relational model.

 

Next Article- Selection Operator in Relational Algebra

 

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