1168 search results - page 17 / 234 » Optimization strategies for complex queries |
ICDE
2005
IEEE
14 years 9 months ago
2005
IEEE
Sequence-based XML indexing aims at avoiding expensive join operations in query processing. It transforms structured XML data into sequences so that a structured query can be answ...
VLDB
2007
ACM
14 years 7 months ago
2007
ACM
The growing nature of databases, and the flexibility inherent in the SQL query language that allows arbitrarily complex formulations, can result in queries that take inordinate am...
BNCOD
1997
13 years 9 months ago
1997
Abstract. In this paper we present two improvements to the partitioning process: 1) A new dynamic bu er management strategy is employed to increase the average block size of I/O-tr...
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
Algorithms that exploit sort orders are widely used to implement joins, grouping, duplicate elimination and other set operations. Query optimizers traditionally deal with sort ord...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
Text documents often embed data that is structured in nature, and we can expose this structured data using information extraction technology. By processing a text database with inf...