Multiversion two - phase locking mechanism eliminates the conflicts between readonly and update transactions transactions are never restarted.

多版本两阶段封锁机制消除了只读事务和更新事务的冲突,只读事物从不重启动.

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The conflicts between mobile read - only and mobile update transactions could be eliminated by optimistic method.

通过乐观方法,消除移动只读事务和移动更新事务的冲突.

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