Concurrency control in business transaction terms usually involves generating and maintaining locks on data stores, such as relational databases.

并发控制在业务事务术语中通常涉及生成和维护数据存储上的锁，例如关系数据库。

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Moreover, there are many services that do not have concurrency control at all, which may also lead to inconsistent data.

此外，有许多不具备并发控制的服务，这也可能导致不一致的数据。

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Optimistic locking is an extremely efficient concurrency control method that guarantees data integrity without placing any physical lock in the database.

乐观锁是一个极其有效的并发性控制方法，它可以确保数据完整性而又无需在数据库中放置任何物理锁。

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