Computer Science
8 years ago

New relational model allows users to control duplicate elimination in queries!

An extended relational algebra with control over duplicate elimination
Umeshwar Dayal, Nathan Goodman, Randy H. Katz

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The article introduces a new way to work with data in databases, allowing for duplicate information to be kept if needed. It presents different methods for writing queries in this new system, showing that some are more efficient than others. The study concludes that the new system and an existing language have similar capabilities when it comes to certain types of queries.