Thuật toán tính tổng theo miền trong xử lý phân tích trực tuyến đối với các kho dữ liệu

Đoàn Văn Ban

Abstract



A range query applies an aggregation operation over all selected cells an OLAP data cube where the selection is  specified by providing ranges of values for numeric dimensions. We present fast algorithm for range queries for  the  most popular aggregation operation: SUM.


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Journal of Computer Science and Cybernetics ISSN: 1813-9663

Published by Vietnam Academy of Science and Technology