Sciweavers

6650 search results - page 487 / 1330
» Mutating database queries
Sort
View
ICDE
2010
IEEE
233views Database» more  ICDE 2010»
16 years 4 days ago
Polynomial heuristics for query optimization
— Research on query optimization has traditionally focused on exhaustive enumeration of an exponential number of candidate plans. Alternatively, heuristics for query optimization...
Nicolas Bruno, César A. Galindo-Legaria, Mi...
ICDT
2003
ACM
91views Database» more  ICDT 2003»
16 years 1 days ago
Reformulation of XML Queries and Constraints
We state and solve the query reformulation problem for XML publishing in a general setting that allows mixed (XML and relational) storage for the proprietary data and exploits redu...
Alin Deutsch, Val Tannen
190
Voted
ICDT
2001
ACM
153views Database» more  ICDT 2001»
15 years 11 months ago
Estimating Range Queries Using Aggregate Data with Integrity Constraints: A Probabilistic Approach
In fast OLAP applications it is often advantageous to provide approximate answers to range queries in order to achieve very high performances. A possible solution is to inquire sum...
Francesco Buccafurri, Filippo Furfaro, Domenico Sa...
VL
1998
IEEE
172views Visual Languages» more  VL 1998»
15 years 11 months ago
VIQING: Visual Interactive Querying
This paper presents VIQING, an environment for expressing queries via direct manipulation of data visualizations. VIQING provides a simple graphical interface for connecting visua...
Chris Olston, Michael Stonebraker, Alexander Aiken...
VLDB
1993
ACM
99views Database» more  VLDB 1993»
15 years 11 months ago
Control of an Extensible Query Optimizer: A Planning-Based Approach
III this paper we address the problem of controlling the execution of a query optimizer. We describe a control for the optimization process that is based on planning. The controll...
Gail Mitchell, Umeshwar Dayal, Stanley B. Zdonik