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一种基于聚簇和分表技术的查询统计优化方法的设计与实现

Application Research of Computers(2006)

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Abstract
针对查询统计的自身特点,通过在文件组织时把需要统计的相关项的记录聚簇存储在块中,同时把数据量非常大的统计表按一定规则分成若干小表,并在小表上建立索引,这样不仅能减少物理磁盘I/O次数,还能减少扫描时间达到优化目的。这种方法能够提高查询统计效率,并在具体的项目中获得了成功。
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Key words
Split Large Table,Query Optimization,Physical Cluster
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