Non-lock concurrency control

{{ safesubst:#invoke:Unsubst||date=__DATE__ |$B= Template:Ambox }} In Computer Science, in the field of databases, non-lock concurrency control is a concurrency control method used in relational databases without using locking.

There are several non-lock concurrency control methods, which involve the use of timestamps on transaction to determine transaction priority:

• Optimistic concurrency control
  • Timestamp-based concurrency control
  • Validation-based concurrency control
  • Multiversion concurrency control
    • Snapshot isolation

See also

• Concurrency pattern
• InterBase
• Lock-free and wait-free algorithms

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