716 search results - page 26 / 144 » Optimizing Queries in Extended Relational Databases |
110
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SIGMOD
1995
ACM
15 years 2 months ago
1995
ACM
Text is a pervasive information type, and many applications require querying over text sources in addition to structured data. This paper studies the problem of query processing i...
223
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SIGMOD
2007
ACM
15 years 11 months ago
2007
ACM
The wide popularity of free-and-easy keyword based searches over World Wide Web has fueled the demand for incorporating keyword-based search over structured databases. However, mo...
XSYM
2004
Springer
15 years 4 months ago
2004
Springer
Due to their numerous benefits, relational systems play a major role in storing XML documents. XML also benefits relational systems by providing a means to publish legacy relatio...
VLDB
2005
ACM
15 years 4 months ago
2005
ACM
A “plan diagram” is a pictorial enumeration of the execution plan choices of a database query optimizer over the relational selectivity space. In this paper, we present and an...
VLDB
1987
ACM
15 years 2 months ago
1987
ACM
A Datalog program can be translated into a system of fixpoint equations of relational algebra; this paper studies how such a system can be solved and optimized for a particular qu...