There's been a lot of discussion recently about autonomous databases, which offer the promise of keeping database systems stable and performant while alleviating much of the tuning and configuration ...

What is MVCC? (multiversion concurrency control) Multiversion concurrency control (MVCC) is a database optimization technique. MVCC creates duplicate copies of records so that data can be safely read ...

Data is not sedentary. Once data has been created, organizations tend to move it around to support many different purposes-different applications, different geographies, different users, different ...

Enterprise database architectures use three DBMS schema layers to separate the system into internal, external and conceptual tiers. Here's how they work.