Abstract
We describe the core of a rule-based CQL, devoted to the manipulation of 2- dimensional tabular databases. The rules provide a simple and declarative way to restructure and query tables, and the constraints allow to define cell contents by formulas over concrete domains. We define a model-theoretic semantics and develop an equivalent fixpoint theory that leads to a naive evaluation procedure.
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Hacid, MS., Marcel, P., Rigotti, C. (1996). A rule-based CQL for 2-dimensional tables. In: Gaede, V., Brodsky, A., Günther, O., Srivastava, D., Vianu, V., Wallace, M. (eds) Constraint Databases and Applications. CDB 1997. Lecture Notes in Computer Science, vol 1191. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-62501-1_27
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DOI: https://doi.org/10.1007/3-540-62501-1_27
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