409 search results - page 30 / 82 » Plan Databases: Model and Algebra |
114
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SSDBM
1998
IEEE
15 years 4 months ago
1998
IEEE
We address the issue of designing effective query languages for OLAP databases. The basis of our investigation is MD, a new data model for multidimensional databases that, unlike ...
EDBT
2008
ACM
15 years 12 months ago
2008
ACM
For complex data mining queries, query optimization issues arise, similar to those for the traditional database queries. However, few works have applied the cost-based query optim...
VLDB
1992
ACM
15 years 3 months ago
1992
ACM
This paper considers the problem of adding list as a type constructor to an object-oriented data model. In particular, we are concerned with how lists in a database can be constru...
164
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ER
2011
Springer
13 years 11 months ago
2011
Springer
Abstract. User preferences are a fundamental ingredient of personalized database applications, in particular those in which the user context plays a key role. Given a set of prefer...
DBPL
1999
Springer
15 years 4 months ago
1999
Springer
Linear constraint databases and query languages are appropriate for spatial database applications. Not only the data model is natural to represent a large portion of spatial data s...