14248 search results - page 225 / 2850 » Queries |
154
Voted
SIGMOD
2010
ACM
15 years 10 months ago
2010
ACM
Many advanced data management operations (e.g., incremental maintenance, trust assessment, debugging schema mappings, keyword search over databases, or query answering in probabil...
164
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SIGMOD
2009
ACM
15 years 10 months ago
2009
ACM
It has recently been asserted that the usability of a database is as important as its capability. Understanding the database schema, the hidden relationships among attributes in t...
153
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VLDB
2001
ACM
15 years 10 months ago
2001
ACM
In recent years, several methods have been proposed for implementing interactive similarity queries on multimedia databases. Common to all these methods is the idea to exploit use...
142
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ALT
2000
Springer
15 years 9 months ago
2000
Springer
A conjunctive query problem in relational database theory is a problem to determine whether or not a tuple belongs to the answer of a conjunctive query over a database. Here, a tup...
180
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FOCS
1998
IEEE
15 years 9 months ago
1998
IEEE
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...