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11g中基于哈希算法对唯一值数（NDV）的估算]]> http://www.HelloDBA.com/reader.php?ID=184&lang=cn 文档 http://www.HelloDBA.com/reader.php?ID=184&lang=cn fuyuncat Thu, 15 Sep 2011 04:39:58 GMT http://www.HelloDBA.com/reader.php?ID=184&lang=cn <![CDATA[Approximate NDV based on hash algorithm in Oracle 11g]]> http://www.HelloDBA.com/reader.php?ID=184&lang=en 文档 http://www.HelloDBA.com/reader.php?ID=184&lang=en fuyuncat Thu, 15 Sep 2011 04:39:58 GMT http://www.HelloDBA.com/reader.php?ID=184&lang=cn <![CDATA[DISTINCT聚集函数转换]]> http://www.HelloDBA.com/reader.php?ID=183&lang=cn 文档 http://www.HelloDBA.com/reader.php?ID=183&lang=cn fuyuncat Wed, 31 Aug 2011 02:43:30 GMT http://www.HelloDBA.com/reader.php?ID=183&lang=cn <![CDATA[Distinct Aggregate Transformation]]> http://www.HelloDBA.com/reader.php?ID=183&lang=en 文档 http://www.HelloDBA.com/reader.php?ID=183&lang=en fuyuncat Wed, 31 Aug 2011 02:43:30 GMT http://www.HelloDBA.com/reader.php?ID=183&lang=cn <![CDATA[FyDB成为开源项目]]> 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