Learn about leading concurrency control mechanisms used for data replication in distributed environments - techniques used by Oracle RAC, TimesTen, and GigaSpaces and NoSQL databases.

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 ...

How databases manage and store their data is defined in the internal DBMS layer, also known as the physical layer. This part of the three-layer database architecture concerns itself with how data is ...

The authors present a novel MVCC implementation for main-memory database systems that has very little overhead compared to serial execution with single-version concurrency control, even when ...