620 search results - page 50 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
149
click to vote
VLDB
1998
ACM
15 years 8 months ago
1998
ACM
Semistructured data is not strictly typed like relational or object-oriented data and may be irregular or incomplete. It often arises in practice, e.g., when heterogeneous data so...
132
Voted
DAWAK
2001
Springer
15 years 8 months ago
2001
Springer
Multi-Dimensional Expressions (MDX) provide an interface for asking several related OLAP queries simultaneously. An interesting problem is how to optimize the execution of an MDX q...
111
Voted
WDAG
1998
Springer
15 years 8 months ago
1998
Springer
We give a rigorous account of an algorithm that provides sequentially consistent replicated data on top of the view synchronous group communication service previously specified by ...
140
click to vote
GIS
2002
ACM
15 years 3 months ago
2002
ACM
Geographical information systems are more and more based on a DBMS with spatial extensions, which is also the case for the system described in this paper. The design and implementa...
141
click to vote
IDEAS
2005
IEEE
15 years 9 months ago
2005
IEEE
The XML data is order-sensitive. The order problem, that is how ordered XML documents and order-sensitive queries over it can be efficiently supported when mapped into the unorde...