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SQL’s Three-Valued Logic and Certain Answers Leonid Libkin School of Informatics, University of Edinburgh Abstract SQL uses three-valued logic for evaluating queries on databases with nulls. The standard theoretical ap
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Document Date: 2015-01-10 06:40:54
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SQL’s Three-Valued Logic and Certain Answers Leonid Libkin School of Informatics, University of Edinburgh Abstract SQL uses three-valued logic for evaluating queries on databases with nulls. The standard theoretical ap