Oracle某个字段去重详解数据库

测试数据如下

例子1：要求对NAME相同的值只取一条即可

select * 
  from test t 
 where t.rowid in (select max(rowid) from test group by name) 

例子1：要求对NAME相同的值只取一条且AGE值最大

select * 
  from test t 
 where (t.name, t.age) in (select name, max(age) from test group by name)