221 search results - page 9 / 45 » Chase of Recursive Queries |
155
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VLDB
1987
ACM
15 years 9 months ago
1987
ACM
Severalmethodshavebeenproposedto compile recursive Datalog programs. The most well-known perform a rewriting of rules using MAGIC or PROBLEM predicates in order to push selections...
153
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IDEAS
2007
IEEE
16 years 2 days ago
2007
IEEE
In this paper we study the problem of deciding whether a regular path query over views in data-integration systems can be re-expressed without recursion. The problem becomes chall...
174
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APLAS
2011
ACM
14 years 5 months ago
2011
ACM
Verification of programs with procedures, multi-threaded programs, and higher-order functional programs can be effectively auusing abstraction and refinement schemes that rely o...
165
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VLDB
1994
ACM
15 years 9 months ago
1994
ACM
A join index hierarchy method is proposed to handle the "goto's on disk" problem in objectoriented query processing. The method constructs a hierarchy of join indic...
159
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ICDT
2010
ACM
16 years 3 months ago
2010
ACM
We study fundamental aspects related to the efficient processing of the SPARQL query language for RDF, proposed by the W3C to encode machine-readable information in the Semantic W...