使用 GROUP BY 检索满足条件的记录

Retrieving records fulfilling a condition using GROUP BY (使用 GROUP BY 检索满足条件的记录)

问题描述

我现在只想从几千条记录中选择计数大于 1 的行(换句话说，重复项)我主要看到 1s 和一些 2s 和 3s 在这里和那里

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` 

我该怎么做?

推荐答案

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

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