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When conflicts are rare, validation can be done efficiently, leading to higher throughput than other concurrency control methods.{{Fact|date=February 2007}} However, if conflicts happen often, the cost of repeatedly restarting transactions, hurts performance significantly — other [[non-lock concurrency control]] methods have better performance when there are many conflicts.
==Web usage==
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==See also==
*[[Opportunistic Locking]]
[[Category:concurrency control]]
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