In a database management system (DBMS), concurrency control manages simultaneous access to a database. It prevents two users from editing the same record at the same time and also serializes ...

Multi-Version Concurrency Control (MVCC) is a widely employed concurrency control mechanism, as it allows for execution modes where readers never block writers. However, most systems implement only ...

Now-a-days, distributed databases have taken concentration in the database research. Data distribution and replication offer opportunities for improving performance through parallel query execution ...

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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 ...

Lock contention issues can be frustrating problems to investigate and debug. But anytime a database system is involved, the potential exists for locking to cause concurrency problems. Before blaming ...