[英]How to select only the most recent
Table A has ID and date and name.表 A 有 ID、日期和名称。 Each time the record is changed the first 11 digits of the Id remain the same but the final digit would increase by 1. For example
每次更改记录时,Id 的前 11 位数字保持不变,但最后一位数字会增加 1。例如
123456789110 01-01-2020 John smith
119876543210 01-01-2020 Peter Griffin
119876543211 05-01-2020 Peter Griffin
How could I write a statement that shows The iD associated with John smith as well as the most recent Id of Peter Griffin?我怎么能写一个声明,显示与约翰史密斯相关的 iD 以及彼得格里芬的最新 ID? Thanks
谢谢
Yet another option is using WITH TIES
另一种选择是使用
WITH TIES
Select top 1 with ties *
From YourTable
Order by row_number() over (partition by left(id,11) order by date desc)
Why not just use max()
?为什么不直接使用
max()
?
select name, max(id)
from t
group by name;
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