2724 search results - page 245 / 545 » Optimizing Queries on Files |
148
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OOPSLA
1997
Springer
15 years 8 months ago
1997
Springer
Object relationships in modern software systems are becoming increasingly numerous and complex. Programmers who try to find violations of such relationships need new tools that al...
147
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DLOG
2007
15 years 6 months ago
2007
We present cq-programs, which enhance nonmonotonic description logics (dl-) programs by conjunctive queries (CQ) and union of conjunctive queries (UCQ) over Description Logics kno...
137
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BNCOD
2004
15 years 5 months ago
2004
Extending relational database functionality to include data mining primitives is one step towards the greater goal of more closely integrated database and mining systems. This pape...
150
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VLDB
1989
ACM
15 years 8 months ago
1989
ACM
An Event-Join combinestemporaljoin and outerjoin properties into a single operation. It is mostly used to group temporal attributes of an entity into a single relation. In this pa...
208
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SIGMOD
2005
ACM
16 years 4 months ago
2005
ACM
The problem of estimating progress for long-running queries has recently been introduced. We analyze the characteristics of the progress estimation problem, from the perspective o...