| Autor: |
Bierman, Gavin, Koch, Christoph, Flesca, Sergio, Furfaro, Filippo, Parisi, Francesco |
| Zdroj: |
Database Programming Languages; 2005, p279-294, 16p |
| Abstrakt: |
The problem of extracting consistent information from relational databases violating integrity constraints on numerical data is addressed. In particular, aggregate constraints defined as linear inequalities on aggregate-sum queries on input data are considered. The notion of repair as consistent set of updates at attribute-value level is exploited, and the characterization of several data-complexity issues related to repairing data and computing consistent query answers is provided. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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