锁并不总是必须控制整个数据资源。
A lock does not always have to control an entire data resource.
锁快照包含数据库摘要信息、应用程序信息，当然还有锁信息。
The lock snapshot includes database summary information, application information and, of course, the lock information.
需要对这些统计数据做一下关于锁被请求的方式 的简短说明。
These statistics require a brief explanation of how locks can be acquired.
但不能在数据库中无限地保持写锁。
But a write lock in the database can't be held indefinitely.
但不能在数据库中无限地保持写锁。
But a write lock in the database can't be held indefinitely.
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