Community driven content discussing all aspects of software development from DevOps to design patterns. The SQL specification defines four transaction isolation levels, although a fifth transaction ...

Transaction logs are a vital yet often overlooked component of database architecture. They are often forgotten because they are not something actively maintained like the schema contained within a ...

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

A database start up, NuoDB, reached out to me to talk about a project they were working on to address the need for extremely scalable, web scale, transaction oriented database engines. The ...