如何删除表中certian字段等于指定的重复行

您好我有一个匹配的应用程序，匹配两个字段使用Jaro algorythms。

我如何删除以下内容：请参阅下面的图像链接了解我的问题:)

谢谢

Answer 1

假设“保持与str1最高匹配的行”，那么这个

DECLARE @t TABLE (str1 varchar(50), str2 varchar(50), MATCH decimal (5,2)); INSERT @t VALUES ('ABC ELEC', 'ABC ELEC', 100), ('ABC ELEC', 'ABB ELEC', 95), ('ABC ELEC', 'ABC ELEK', 92.5), ('ABC ELEC', 'ABF ELEC', 91.5), ('ABC ELEC', 'ADD ELEK', 95.5), ('BBC INVEST', 'BBC DOMEST ELEC', 85.94); DELETE X FROM ( SELECT str1, str2, ROW_NUMBER() OVER (PARTITION BY T.str1 ORDER BY T.MATCH DESC) AS rn FROM @t T ) X WHERE rn > 1; SELECT * FROM @t T;