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What is Other Relational Languages about?

This chapter discusses two additional relational languages, QBE and Datalog, highlighting their differences and applications in database systems. QBE, based on domain relational calculus, lacks a standard and is used in various PC database systems, while Datalog, similar to Prolog, offers purely declarative semantics for efficient query evaluation. The chapter also includes exercises for constructing QBE queries and comparisons with Datalog for various database scenarios.

Author

shibhaghosh

Language

EN