619 search results - page 14 / 124 » Query Planning in Infomaster |
144
Voted
BTW
2003
Springer
15 years 7 months ago
2003
Springer
Abstract: Optimization of nested queries, in particular finding equivalent “flattened” queries for queries that employ the SQL sub-query construct, has been researched extensiv...
125
Voted
ICDT
2007
ACM
15 years 8 months ago
2007
ACM
We consider the problem of querying data sources that have limited capabilities and can thus only be accessed by complying with certain binding patterns for their attributes. This ...
99
Voted
PVLDB
2010
15 years 7 days ago
2010
Probabilistic databases hold promise of being a viable means for large-scale uncertainty management, increasingly needed in a number of real world applications domains. However, q...
139
Voted
SIGMOD
2011
ACM
14 years 4 months ago
2011
ACM
An important means of allowing non-expert end-users to pose ad hoc queries — whether over single databases or data integration systems — is through keyword search. Given a set...
108
click to vote
DEBU
2000
15 years 1 months ago
2000
Execution plans produced by traditional query optimizers for data integration queries may yield poor performance for several reasons. The cost estimates may be inaccurate, the mem...