400 search results - page 4 / 80 » On Processing Nested Queries in Distributed Object-Oriented ... |
SIGMOD
2005
ACM
14 years 1 months ago
2005
ACM
One of the most powerful features of SQL is the use of nested queries. Most research work on the optimization of nested queries focuses on aggregate subqueries. However, the solut...
VLDB
2005
ACM
14 years 1 months ago
2005
ACM
IDEAS
2003
IEEE
14 years 26 days ago
2003
IEEE
In the past few years, much attention has been paid to the study of semistructured data, i.e., data with irregular, possibly unstable, and rapidly changing structure, and, in part...
DEXAW
1999
IEEE
13 years 12 months ago
1999
IEEE
This work addresses a problem of optimal query processing in heterogeneous and distributed multidatabase systems. The objective is to nd a method for opimization of global query p...
ICDT
2012
ACM
11 years 10 months ago
2012
ACM
We introduce a representation system for relational data based on algebraic factorisation using distributivity of product over union and commutativity of product and union. We giv...