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What is Relational Algebra 4 about?

The document provides an overview of relational algebra and relational calculus as formal query languages for the relational data model, detailing their operations and applications. It explains various relational algebra operations such as set operations, select, project, and join, along with aggregate functions and grouping. Additionally, it introduces tuple relational calculus, highlighting its declarative nature and the use of tuple variables in query expressions.

Author

f20220877

Language

EN