54 search results - page 1 / 11 » Dynamic index selection in data warehouses |
CORR
2008
Springer
13 years 4 months ago
2008
Springer
Analytical queries defined on data warehouses are complex and use several join operations that are very costly, especially when run on very large data volumes. To improve response...
DAWAK
2005
Springer
13 years 10 months ago
2005
Springer
The queries defined on data warehouses are complex and use several join operations that induce an expensive computational cost. This cost becomes even more prohibitive when querie...
IJCSA
2007
13 years 4 months ago
2007
Data warehouse systems service larger and larger sets of data. Effective data indexing is not sufficient, because one system node is unable to store such amount ofquickly flowing ...
ICDE
1997
IEEE
14 years 5 months ago
1997
IEEE
Data warehouses collect copies of information from remote sources into a single database. Since the remote data is cached at the warehouse, it appears as local relations to the us...
SBBD
2001
13 years 6 months ago
2001
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...