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@inproceedings{DBLP:conf/vldb/ChanI99,
author = {Chee Yong Chan and
Yannis E. Ioannidis},
editor = {Malcolm P. Atkinson and
Maria E. Orlowska and
Patrick Valduriez and
Stanley B. Zdonik and
Michael L. Brodie},
title = {Hierarchical Prefix Cubes for Range-Sum Queries},
booktitle = {VLDB'99, Proceedings of 25th International Conference on Very
Large Data Bases, September 7-10, 1999, Edinburgh, Scotland,
UK},
publisher = {Morgan Kaufmann},
year = {1999},
isbn = {1-55860-615-7},
pages = {675-686},
ee = {db/conf/vldb/ChanI99.html},
crossref = {DBLP:conf/vldb/99},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
A range-sum query sums over all selected cells of an OLAP data cube where the selection is specified by ranges of contiguous values for each dimension. An efficient approach to process such queries is to precompute a prefix cube (PC), which is a cube of the same dimensionality and size as the original data cube but with a prefix range-sum stored in each cell. Using a PC, any range-sum query can be evaluated at a cost that is independent of the size of the sub-cube circumscribed by the query. However, a drawback of PCs is that they are very costly to maintain. Recently, a variant of prefix cubes called Relative Prefix Cubes (RPC) has been proposed to alleviate this problem.
In this paper, we propose a new class of cube representations called Hierarchical Cubes, which is based on a design framework defined by two orthogonal dimensions. Our results show that a particular cube design called the Hierarchical Band Cube (HBC) is the overall winner: it not only has a significantly better query-update tradeoff than previous approaches, but it can also be more effectively buffered.
Copyright © 1999 by the VLDB Endowment. Permission to copy without fee all or part of this material is granted provided that the copies are not made or distributed for direct commercial advantage, the VLDB copyright notice and the title of the publication and its date appear, and notice is given that copying is by the permission of the Very Large Data Base Endowment. To copy otherwise, or to republish, requires a fee and/or special permission from the Endowment.
