使用GROUP BY检索满足条件的记录

本文介绍了使用GROUP BY检索满足条件的记录的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我想只从几千条记录中选择计数大于1（换句话说，重复）的行，我通常在这里和那里看到1s和2s和3s。

I'd like to only select the rows where the count is greater than 1 (in other words the duplicates) right now from a few thousand records I am mostly seeing 1s with a few 2s and 3s here and there

SELECT count( * ) AS `Number` , GI . * FROM `GeneralInformation` AS GI GROUP BY `FirstName` , `Surname`

如何做到这一点？

推荐答案

SELECT count( * ) AS `Number` , GI . * FROM `GeneralInformation` AS GI GROUP BY `FirstName` , `Surname` HAVING count(*)>1