2223 search results - page 59 / 445 » Query Optimization in an OODBMS |
107
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CORR
1999
Springer
14 years 11 months ago
1999
Springer
Complex queries are becoming commonplace, with the growing use of decision support systems. These complex queries often have a lot of common sub-expressions, either within a singl...
VLDB
1993
ACM
15 years 3 months ago
1993
ACM
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...
SIGMOD
2009
ACM
15 years 6 months ago
2009
ACM
The state of the art commercial query optimizers employ cost-based optimization and exploit dynamic programming (DP) to find the optimal query execution plan (QEP) without evalua...
SIGMOD
1993
ACM
15 years 3 months ago
1993
ACM
The traditional focus of relational query optimization schemes has been on the choice of join methods and join orders. Restrictions have typically been handled in query optimizers ...
187
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ICDE
2003
IEEE
16 years 1 months ago
2003
IEEE
Structural join operations are central to evaluating queries against XML data, and are typically responsible for consuming a lion's share of the query processing time. Thus, ...