721 search results - page 83 / 145 » Supporting top-k join queries in relational databases |
W3C
1998
14 years 11 months ago
1998
This paper discusses the use of XML in conjunction with a variety of repositories and database systems, and outlines some of the requirements for an effective query language. Many...
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ICDE
2005
IEEE
15 years 11 months ago
2005
IEEE
Vertical partitioning is a well-known technique for optimizing query performance in relational databases. An extreme form of this technique, which we call vectorization, is to sto...
SIGMOD
2010
ACM
15 years 2 months ago
2010
ACM
Current relational databases require that a database schema exist prior to data entry and require manual optimization for best performance. We describe the query optimization tech...
VLDB
1989
ACM
15 years 1 months ago
1989
ACM
We present a framework for the estimation of the size of binary recursively defined relations. We show how the framework can be used to provide estimating algo rithms for the size...
SIGMOD
2000
ACM
15 years 2 months ago
2000
ACM
Commercial relational database systems today provide only limited temporal support. To address the needs of applications requiring rich temporal data and queries, we have built TI...