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SIGMOD
2006
ACM
128views Database» more  SIGMOD 2006»
12 years 5 months ago
Temporal aggregates and temporal universal quantification in standard SQL
Although it has been acknowledged for many years that querying and updating time-varying information using standard (i.e., non-temporal) SQL is a challenging task, the proposed te...
Esteban Zimányi
ICDE
1995
IEEE
164views Database» more  ICDE 1995»
12 years 6 months ago
Efficient Processing of Nested Fuzzy SQL Queries
?In a fuzzy relational database where a relation is a fuzzy set of tuples and ill-known data are represented by possibility distributions, nested fuzzy queries can be expressed in ...
Qi Yang, Chengwen Liu, Jing Wu, Clement T. Yu, Son...
DASFAA
2007
IEEE
148views Database» more  DASFAA 2007»
11 years 9 months ago
An Efficient Encoding and Labeling for Dynamic XML Data
In order to efficiently determine structural relationships among XML elements and to avoid re-labeling for updates, much research about labeling schemes has been conducted, recentl...
Jun-Ki Min, Jihyun Lee, Chin-Wan Chung
DBPL
1995
Springer
106views Database» more  DBPL 1995»
11 years 9 months ago
On Impossibility of Decremental Recomputation of Recursive Queries in Relational Calculus and SQL
We study the problem of maintaining recursively-de ned views, such as the transitive closure of a relation, in traditional relational languages that do not have recursion mechanis...
Guozhu Dong, Leonid Libkin, Limsoon Wong
CIKM
2011
Springer
10 years 5 months ago
Ranking-based processing of SQL queries
A growing number of applications are built on top of search engines and issue complex structured queries. This paper contributes a customisable ranking-based processing of such qu...
Hany Azzam, Thomas Roelleke, Sirvan Yahyaei
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