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有两个主要工具，用途不一，有了它们您就可以访问数据库监控信息：快照监控器和事件监控器。
There are two primary tools, each serving a different purpose, with which you can access database monitor information: the snapshot monitor and event monitors.
本文通过实例演示了如何使用锁事件监控器来收集所有种类的并发性问题：死锁、锁超时及锁等待。
It showed, by example, how you can use the lock event monitor to collect information about any kind of concurrency issue: deadlocks, lock-timeouts, and lock-waits.
快照监控器允许您捕获特定时间内数据库活动的状态，而事件监控器只在特定数据库事件发生时记录数据。
The snapshot monitor enables you to capture a picture of the state of the database activity at a specific moment in time, while event monitors log data only as specified database events occur.
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