SIGMOD
2004
ACM
14 years 11 months ago
2004
ACM
The rapid adoption of XML as the standard for data representation and exchange foreshadows a massive increase in the amounts of XML data collected, maintained, and queried over th...
SIGMOD
2004
ACM
14 years 11 months ago
2004
ACM
Existing SQL aggregate functions present important limitations to compute percentages. This article proposes two SQL aggregate functions to compute percentages addressing such lim...
SIGMOD
2004
ACM
14 years 11 months ago
2004
ACM
We introduce a hierarchical labeling scheme called ORDPATH that is implemented in the upcoming version of Microsoft? SQL ServerTM. ORDPATH labels nodes of an XML tree without requ...
SIGMOD
2004
ACM
14 years 11 months ago
2004
ACM
Mining informative patterns from very large, dynamically changing databases poses numerous interesting challenges. Data summarizations (e.g., data bubbles) have been proposed to c...
SIGMOD
2004
ACM
14 years 11 months ago
2004
ACM
This paper introduces the Scalable INcremental hash-based Algorithm (SINA, for short); a new algorithm for evaluating a set of concurrent continuous spatio-temporal queries. SINA ...
SIGMOD
2004
ACM
14 years 11 months ago
2004
ACM
We perform a theoretical study of the following queryview security problem: given a view V to be published, does V logically disclose information about a confidential query S? The...
SIGMOD
2004
ACM
14 years 11 months ago
2004
ACM
SIGMOD
2004
ACM
14 years 11 months ago
2004
ACM
In traditional database security research, the database is usually assumed to be trustworthy. Under this assumption, the goal is to achieve security against external attacks (e.g....
SIGMOD
2004
ACM
14 years 11 months ago
2004
ACM
Virtually every commercial query optimizer chooses the best plan for a query using a cost model that relies heavily on accurate cardinality estimation. Cardinality estimation erro...
SIGMOD
2004
ACM
14 years 11 months ago
2004
ACM
Many modern software systems provide progress indicators for long-running tasks. These progress indicators make systems more user-friendly by helping the user quickly estimate how...