288 search results - page 16 / 58 » Beyond the traditional query operators |
104
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VLDB
2005
ACM
15 years 3 months ago
2005
ACM
Developing cost models for query optimization is significantly harder for XML queries than for traditional relational queries. The reason is that XML query operators are much mor...
JACM
2000
14 years 9 months ago
2000
We rework parts of the classical relational theory when the underlying domain is a structure with some interpreted operations that can be used in queries. We identify parts of the...
145
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SIGMOD
2007
ACM
15 years 9 months ago
2007
ACM
Suppose a long-running analytical query is executing on a database server and has been allocated a large amount of physical memory. A high-priority task comes in and we need to ru...
IAT
2009
IEEE
15 years 4 months ago
2009
IEEE
—In recent years, there has been a move toward supporting the human element of Web search beyond a simple query box and a ranked list of search results. In this paper, we present...
ISMB
1998
14 years 11 months ago
1998
Existing query interfaces for biological databases are either based on fixed forms or textual query languages. Users of a fixed form-based query interface are limited to performin...