;with test as (
select * from 表名 where 字段名='值'
))
--假设test里面有一列名为name
select * from test A where Exists(select Max(lasteditdt) from test A1 where A1.name=A.name
select top 1 * from 表名 where 字段名='值' order by DataTimeColumnName desc
DataTimeColumnName即这个数据类型为DataTime的列名