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Multi-Version Concurrency Control


(MVCC) An advanced technique for improving multi-user database performance. The main difference between multiversion and lock models is that in MVCC locks acquired for querying (reading) data don' t conflict with locks acquired for writing data and so reading never blocks writing and writing never blocks reading. This technique is used in the free software database PostgreSQL. (1999-06-18)

In addition suitable contents:
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