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Pairs of styles-Puzzle 44

Elsevier Inc.
DOI: 10.1016/b978-012373596-6/50045-4


Publisher Summary In a table that shows a sum of all pairs and their reciprocals together with a result set showing only one entry per pair, there is no trouble getting rows with reciprocals added together with a self-join, but the problem arises with the duplicate rows. This chapter deals with this problem and explains how structured query language (SQL) helps to create a table that helps in rectifying this issue.

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