409 search results - page 24 / 82 » Plan Databases: Model and Algebra |
IDEAS
2005
IEEE
15 years 3 months ago
2005
IEEE
The XML data is order-sensitive. The order problem, that is how ordered XML documents and order-sensitive queries over it can be efficiently supported when mapped into the unorde...
109
Voted
ER
1992
Springer
15 years 1 months ago
1992
Springer
In this paper, we address the problem of supporting more exibility on the schema of object-oriented databases. We describe a general framework based on an object-oriented data mode...
164
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VLDB
2006
ACM
15 years 9 months ago
2006
ACM
While the information published in the form of XML-compliant documents keeps fast mounting up, efficient and effective query processing and optimization for XML have now become mor...
89
Voted
SIGMOD
2011
ACM
14 years 10 days ago
2011
ACM
We address the problem of making online, parallel query plans fault-tolerant: i.e., provide intra-query fault-tolerance without blocking. We develop an approach that not only achi...
ICDT
1999
ACM
15 years 1 months ago
1999
ACM
In data integration systems, queries posed to a mediator need to be translated into a sequence of queries to the underlying data sources. In a heterogeneous environment, with sour...