When updating current data, DB2 automatically maintains old versions of the data in the appropriate history table-transparently.
更新当前数据时，DB 2在适当的历史表中自动、透明地维护数据的旧版本。
The Alert Aggregator sample is a Web-based application that aggregates various sources of changing data into a series of "alerts" that are displayed in an automatically updating Web page.
Alert Aggregator 示例是基于 Web 的应用程序，可将不断变化数据的各个源聚合为一系列“警报”，显示在自动更新的网页中。
This framework is based on CIDF, and uses Data Mining to mine intrusion models, then automatically transforms it into intrusion detection rules for rule base's updating.
该系统基于公共入侵检测框架（CIDF）构建，当出现新攻击时，利用数据挖掘对海量数据进行挖掘，得出入侵模型后由系统自动转换为检测规则以实现规则库的自动更新。
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