In the current network-centric business model it is becoming increasingly difficult to validate a person's identity, control access, and maintain integrity and privacy of data.
在当前以网络为中心的业务模型中，验证个人身份、控制访问和维护数据的完整性与保密性变得越来越难。
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。
They control access to the back-end data and internally manage current transactions and database locking while preserving data integrity.
在保持数据完整性的同时，它们控制对后端数据的访问并在内部对当前事务和数据库锁定进行管理。
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