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<p>The domain of statistical and scientific databases is targeted here, and the class of aggregate queries which are very often encountered in this domain is considered. Such a query is aimed at retrieving some aggregate characteristics of the raw data. The tree-based statistics access method (TBSAM), which provides support for the efficient processing of aggregate queries, is presented. It is related to the B/sup tree and also processes the B/sup tree's efficient update properties. Complementing TBSAM is the provision of a grouped update algorithm for minimizing expensive indexed database updates.</p>
TBSAM; access method; statistical queries; scientific databases; tree-based statistics access method; database management systems; information retrieval; trees (mathematics)

V. Lum, J. Tan and J. Srivastava, "TBSAM: An Access Method for Efficient Processing of Statistical Queries," in IEEE Transactions on Knowledge & Data Engineering, vol. 1, no. , pp. 414-423, 1989.
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