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SBBD
2001
119views Database» more  SBBD 2001»
10 years 2 months ago
The Dimension-Join: A New Index for Data Warehouses
There are several auxiliary pre-computed access structures that allow faster answers by reading less base data. Examples are materialized views, join indexes, B-tree and bitmap in...
Pedro Bizarro, Henrique Madeira
VLDB
2004
ACM
118views Database» more  VLDB 2004»
10 years 6 months ago
On the performance of bitmap indices for high cardinality attributes
It is well established that bitmap indices are eļ¬ƒcient for read-only attributes with low attribute cardinalities. For an attribute with a high cardinality, the size of the bitma...
Kesheng Wu, Ekow J. Otoo, Arie Shoshani
books