Consistent query answers on numerical databases under aggregate constraints
<|reference_start|>Consistent query answers on numerical databases under aggregate constraints: 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 complexity issues related to repairing data and computing consistent query answers is provided.<|reference_end|>
@article{flesca2005consistent,
    title={Consistent query answers on numerical databases under aggregate
  constraints},
    author={Sergio Flesca, Filippo Furfaro, Francesco Parisi},
    journal={arXiv preprint arXiv:cs/0505059},
    year={2005},
    archivePrefix={arXiv},
    eprint={cs/0505059},
    primaryClass={cs.DB}
}