[英]MySQL Select rows with same FK but different values in other row
I am going back through and auditing some database entries and need a query to find the rows I need to work on. 我将回过头来审核一些数据库条目,并需要一个查询来查找我需要处理的行。
I have tried a few subqueries but I could not get near what I'm looking for. 我尝试了几个子查询,但我无法接近我正在寻找的东西。
An example table would be: 示例表将是:
code_id id exchange
1 23 5
2 23 5
3 24 5
4 24 7
5 25 5
6 26 5
Where all I want to extract is rows 3 and 4. I need to know where the id column is the same but exchange is different. 我要提取的只是第3行和第4行。我需要知道id列的位置是相同的,但是交换是不同的。
I think if I get this, I'll be able to build the other 2 tables into the query. 我想如果我得到这个,我将能够在查询中构建其他2个表。
Thanks for the help! 谢谢您的帮助!
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