1527 search results - page 84 / 306 » Data Integration by Describing Sources with Constraint Datab... |
113
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PVLDB
2010
15 years 2 months ago
2010
We present Data Auditor, a tool for exploring data quality and data semantics. Given a rule or an integrity constraint and a target relation, Data Auditor computes pattern tableau...
128
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OOPSLA
2005
Springer
15 years 9 months ago
2005
Springer
We describe CodeQuest, a system for querying source code. It combines two previous proposals, namely the use of logic programming and database system. Experiments (on projects ran...
222
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VLDB
2002
ACM
16 years 4 months ago
2002
ACM
The view selection problem is to choose a set of views to materialize over a database schema, such that the cost of evaluating a set of workload queries is minimized and such that ...
153
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SIGMOD
1998
ACM
15 years 8 months ago
1998
ACM
Most databases contain “name constants” like course numbers, personal names, and place names that correspond to entities in the real world. Previous work in integration of het...
212
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ICDE
2000
IEEE
16 years 5 months ago
2000
IEEE
Execution plans produced by traditional query optimizers for data integration queries may yield poor performance for several reasons. The cost estimates may be inaccurate, the mem...