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Multiversion concurrency control (MVCC) is a database optimization technique. MVCC creates duplicate copies of records so that data can be safely read and updated at the same time. With MVCC, database ...

Relational calculus. Query processing and optimization. Transaction processing: failure, recovery, and concurrency. Database security. Logic-based systems. Parallel ...

In this article I’d like to present a discussion on concurrency handling, concurrency violations and the strategies involved to resolve concurrency conflicts. Concurrency violations: when and why do ...