Sciweavers

995 search results - page 84 / 199
» Optimization of Complex Nested Queries in Relational Databas...
Sort
View

Book
688views
17 years 1 months ago
Database Management Systems
A set of presentations covering the book, which includes the following topics ER Model and Conceptual Design, The Relational Model and SQL DDL, Relational Algebra, SQL, Database Ap...
Raghu Ramakrishnan, Johannes Gehrke
SIGMOD
2008
ACM
140views Database» more  SIGMOD 2008»
16 years 3 months ago
Relational joins on graphics processors
We present a novel design and implementation of relational join algorithms for new-generation graphics processing units (GPUs). The most recent GPU features include support for wr...
Bingsheng He, Ke Yang, Rui Fang, Mian Lu, Naga K. ...
EDBT
2010
ACM
177views Database» more  EDBT 2010»
15 years 9 months ago
Bridging the gap between intensional and extensional query evaluation in probabilistic databases
There are two broad approaches to query evaluation over probabilistic databases: (1) Intensional Methods proceed by manipulating expressions over symbolic events associated with u...
Abhay Jha, Dan Olteanu, Dan Suciu
SIGMOD
2003
ACM
136views Database» more  SIGMOD 2003»
16 years 3 months ago
A Characterization of the Sensitivity of Query Optimization to Storage Access Cost Parameters
Most relational query optimizers make use of information about the costs of accessing tuples and data structures on various storage devices. This information can at times be off b...
Frederick Reiss, Tapas Kanungo
ICDE
2007
IEEE
111views Database» more  ICDE 2007»
16 years 4 months ago
Finding Top-k Min-Cost Connected Trees in Databases
It is widely realized that the integration of database and information retrieval techniques will provide users with a wide range of high quality services. In this paper, we study ...
Bolin Ding, Jeffrey Xu Yu, Shan Wang, Lu Qin, Xiao...