专利名称：Database monitoring system
发明人：Surajit Chaudhuri,Arnd Christian Konig,Vivek
Narasayya
申请号：US10788077申请日：20040226公开号：US07194451B2公开日：20070320
专利附图：
摘要：A framework is provided within a database system for specifying databasemonitoring rules that will be evaluated as part of the execution code path of databaseevents being monitored. The occurrence of a selected database event triggers a rule that
evaluates some parameter of an object related to the event against a condition in therule. If the condition is met, a specified action is taken that can alter the execution of thedatabase event or database system performance. Lightweight aggregation tables areutilized to enable aggregation of object parameter values so that presently occurringevents can be compared to a summary of the object parameter values from previouslyoccurring database events. Signatures are assigned to queries based on the structure ofthe query plan so that information in the lightweight aggregation tables can be groupedaccording to query signature.
申请人：Surajit Chaudhuri,Arnd Christian Konig,Vivek Narasayya
地址：Redmond WA US,Redmond WA US,Redmond WA US
国籍：US,US,US
代理机构：Microsoft Corporation
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