如何使用sql记录某一列的变化 我有一张表:我想查出的集合为 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 select id,name,age from ( select id,name,age , row_number() over(partition by age order by id asc) rn from youtable ) where rn=1 select id, name, age from (select id, name, age, row_number() over(partition by age order by id asc) rn from youtable) where rn = 1 select id, name, age from(select id, name, age,lag(age,1,age-1)over(order by id) as PRE from table) as TWHERE PRE<>age ORACLE中一个中文占3个字节怎么解决? Oracle11g R2在旗舰版Win7下的安装问题 求SQl。。。 代码表的sql语句 同为oracle 10G的字符集为Simplified Chinese_china zhs16gbk的库如何移殖入字符集为utf8的库中 帮我读一下这段代码!大分~ 雏鸟提问--关于type is table of index by 可以用ORACLE发送邮件吗? 在OMS中建立简单的作业所遇到的问题! 请问如何用最简单的sql语言实现这个功能? ASP.NET 连接 oracle报错 ORA-06413 连接未打开错误 拼接两个查询语句,结果件数重复
from (select id,
name,
age,
row_number() over(partition by age order by id asc) rn
from youtable)
where rn = 1
(select id, name, age,lag(age,1,age-1)over(order by id) as PRE from table) as T
WHERE PRE<>age