在Hive中选择最大客户ID

Question

我要从相同的帐号中选择最大客户ID。

select max (customer_ID),account_number
from Account
group by account_number
having account_number ='30010258'

结果是

我希望结果是

Answer 1

使用where子句代替having。

注意：如果account_number为int类型，则删除30010258周围的引号。如果customer_ID的数据类型为字符串，则必须将其强制转换为int。

select max (customer_ID),account_number
from Account
where account_number ='30010258'
group by account_number

Answer 2

选择最大值（int（customer_ID）），帐号 来自帐户 按account_number分组 具有account_number ='30010258'