%0 Journal Article
%T Complicated query aggregation algorithms for multi-dimensional data<br>多维数据的复杂查询聚集算法研究
%A LIU Jin-ling
%A <br>刘金岭
%J 计算机应用
%D 2008
%I 
%X Complex inquiry to the spatial multi-dimensional data is the key point and the difficulty of the multi-dimensional data research. This article has made improvement in several aspects as the following: carry out the data piecemeal according to the grouping attribute value; carry out effective sorting to the integrated data; carry out the optimization in the accumulation function's application. It indicated that the improved algorithm can enhance the inquiry's efficiency greatly via analog data's experiment.
%K complicated query
%K aggregate functions
%K granularity<br>复杂查询
%K 聚集函数
%K 粒度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=44BD60633941B356504EE6F1DD737AF6&yid=67289AFF6305E306&vid=D3E34374A0D77D7F&iid=DF92D298D3FF1E6E&sid=4858DFA42406A0F9&eid=34603A9A580CC7B9&journal_id=1001-9081&journal_name=计算机应用&referenced_num=0&reference_num=10