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我正在寻找重复的数据库 - 但也显示所有重复的记录。我当前的查询:MySQL查找并显示所有重复记录
SELECT 'duplicate' as dup,c.Id, c.CreatedDate, c.email, c.Lead_Grade__c, count(c.email)
FROM contact as c
Inner Join (select c.Id, c.email FROM contact as c group by c.email having count(c.email) > 1) as dup
ON c.email = dup.email
WHERE Lead_Grade__c is null;
这可以为每个重复记录提供1行。我需要2(或更多)行为每个重复的记录。所以,如果记录X和记录Y都具有相同的电子邮件,那么我想同时显示两者。
有什么想法?
谢谢!
你想如何显示两者?作为单独的行或在同一行?如果有多个? – xQbert 2015-01-15 18:25:53