Sciweavers

315 search results - page 22 / 63
» An Overview of Query Optimization in Relational Systems
Sort
View
ICDE
2006
IEEE
119views Database» more  ICDE 2006»
14 years 10 months ago
Laws for Rewriting Queries Containing Division Operators
Relational division, also known as small divide, is a derived operator of the relational algebra that realizes a many-to-one set containment test, where a set is represented as a ...
Ralf Rantzau, Christoph Mangold
ICDE
1998
IEEE
119views Database» more  ICDE 1998»
14 years 10 months ago
Processing Incremental Multidimensional Range Queries in a Direct Manipulation Visual Query
We have developed a MultiMedia Visual Information Seeking (MMVIS) Environment that is the first system to support an integrated approach to the direct manipulation specification o...
Stacie Hibino, Elke A. Rundensteiner
SIGMOD
2009
ACM
114views Database» more  SIGMOD 2009»
14 years 8 months ago
A framework for testing query transformation rules
In order to enable extensibility, modern query optimizers typically leverage a transformation rule based framework. Testing individual rule correctness as well as correctness of r...
Hicham G. Elmongui, Vivek R. Narasayya, Ravishanka...
ICEBE
2005
IEEE
140views Business» more  ICEBE 2005»
14 years 2 months ago
Managing E-Commerce Catalogs in a DBMS with Native XML Support
Electronic commerce is emerging as a major application area for database systems. A large number of e-commerce stores provide electronic product catalogs that allow customers to s...
Lipyeow Lim, Min Wang
COMCOM
1998
78views more  COMCOM 1998»
13 years 8 months ago
The performance of SQL queries to an X.500 directory system
The X.500 standard speci es a distributed directory service designed to store information about people and objects associated with computer networks. Its API is geared toward retr...
David Barrowman, Patrick Martin