摘要
为提高电能质量管理关键业务中查询处理的响应速度,提出了一种支持分级服务的电能质量数据库查询处理模型。首先根据电能质量管理业务类型,建立了查询处理分级模型,然后提出了基于连续查询处理和物化视图技术的数据预处理模型,给出了基于企业服务总线的查询服务分级准入控制模型,实现了电能质量数据库查询处理的分级服务。分析表明,该方法能有效提高电能质量管理关键业务中查询处理的响应速度。
One supporting query processing model for power quality database is proposed, which is useful for improve the response speed of query processing in the critical business of power quality management. Firstly, a differentiation service model of query processing is presented, which is according to the businesses types of power quality management, then, a data preprocessing model is proposed, which is based on the continuous query processing, and materialized view technologies, and then, a ESB based access control model of query processing service is presented, which implement the differentiation service of query processing in power quality database. Analysis shows that, the model can effectively improve the response speed of query processing in the critical business of power quality management.
出处
《电力科学与工程》
2010年第11期18-23,共6页
Electric Power Science and Engineering
关键词
电能质量
查询处理
分级服务
连续查询
物化视图
power quality, query processing, differentiation service, continuous query, materialized view