使用 GROUP BY 检索满足条件的记录
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
相关文章