This paper propose a SQL data mining extractor, which is a framework for interaction between a mining algorthm and a database. Here we show how the SQL data mining extractor works to a familiar data mining algorthm C4.5.

• 通过定义SQL数据开采抽取器，设计了数据开采算法和数据库管理系统接口的框架体系，并通过常用的数据开采算法C4.；5说明了这种标准的SQL数据开采抽取器的适用性。