发明名称 Determining the satisfiability and transitive closure of conditions in a query
摘要 A method and computer system for improving the efficiency of execution of a database query that includes conditions is disclosed. Satisfiability of the conditions is analyzed before executing the query. If the conditions are satisfiable, the transitive closure of the conditions is analyzed and the conditions are modified to meet transitive closure, if necessary, before executing the query.
申请公布号 US6990484(B1) 申请公布日期 2006.01.24
申请号 US20020215828 申请日期 2002.08.09
申请人 NCR CORPORATION 发明人 GHAZAL AHMAD;ELLMANN CURTIS
分类号 G06F17/30 主分类号 G06F17/30
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