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Inconsistent databases • Often arise in data integration. • Suppose have a functional dependency name → salary and two tuples (John, 10K) in source 1, and (John, 20K) in source 2.
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Document Date: 2009-09-13 07:54:31
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Inconsistent databases • Often arise in data integration. • Suppose have a functional dependency name → salary and two tuples (John, 10K) in source 1, and (John, 20K) in source 2.