What is Multi Version Concurrency Control in PostgreSQL?

1.	What is Multi Version Concurrency Control in PostgreSQL?
Answer» Multi-Version Concurrency Control (MVCC) is an advanced method used in PostgreSQL for improving the performance of a database in a multi-user environment. Unlike lock MODELS in other DATABASES, PostgreSQL uses a multi-version environment in which locks that are acquired for reading data don’t conflict with locks acquired for writing the data. HENCE, making the process more compartmentalized and a LOT faster.

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