721 search results - page 16 / 145 » Supporting top-k join queries in relational databases |
78
Voted
TKDE
2002
14 years 9 months ago
2002
A join-index is a data structure used for processing join queries in databases. Join-indices use precomputation techniques to speed up online query processing and are useful for da...
97
Voted
WAIM
2010
Springer
14 years 7 months ago
2010
Springer
Keyword search in relational databases has been widely studied in recent years. Most of the previous studies focus on how to answer an instant keyword query. In this paper, we focu...
EDBT
2009
ACM
15 years 4 months ago
2009
ACM
Keyword search has been recently extended to relational databases to retrieve information from text-rich attributes. However, all the existing methods focus on finding individual...
ICDCIT
2004
Springer
15 years 3 months ago
2004
Springer
Abstract. Many researchers have investigated the problem of storing and querying XML documents using an RDBMS. Two situations are considered in this approach based on whether or no...
102
Voted
CIKM
2005
Springer
15 years 3 months ago
2005
Springer
Modern query optimizers select an efficient join ordering for a physical execution plan based essentially on the average join selectivity factors among the referenced tables. In ...