根据Transformer模型需求，度量指标分组也可以在各个报告中创建，或者整合到一个查询中。
Groups of measures can be created in separate reports as well or consolidated in one query depending on the Transformer model requirements.
由于WrappingJDBCDriver用于多个(可能是不同的)数据库，因此按目标系统库进行划分是很重要的，这样收集的指标就可以按目标数据库进行分组了。
If the WrappingJDBCDriver is used for multiple (possibly different) databases, it is necessary to establish this demarcation so that the collected metrics can be grouped by the target database.
移动检测是支持移动终端进行切换的先决条件，数据完整性是移动终端在切换过程中不丢失分组的重要指标。
Movement detection is the preconditions of a mobile terminal executing handoff, and data integrity is one of the important indexes of a mobile terminal carrying on handoff for the lossless packets.
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