如何根据HiveQL和SQL中特定列的子字符串进行选择？

Question

我有一张蜂巢桌

S.no  Age  minutes  code  
 1     10   20     75081     
 2     11   114    75080      
 3     21   104    75180     
 4     31   124    75108    
 5     10   20     75083     
 6     11   114    75180    
 7     21   104    75180    

我想编写一个hivesql/sql查询,该查询根据区域(即代码的前4位数)给出所说的总分钟的排序列表.我该怎么办呢？我知道SUBSTRING()给了我所需的剪切,但是我无法从那里开始.

Select code, minutes as total  
from TableT   
where S.no > 1
group by code 
order by total

编辑:基于邮政编码前4位数的排名结果应如下所示

总代码

322(即104 + 114 + 104)7518
154(即20 + 114 + 20)7508
124 7510

Answer 1

嗯.我想你想要这个:

select substr(zip, 1, 4) as region, sum(minutes) as minutes,
       rank() over (order by sum(minutes) desc) as therank
from tableT
where s.no > 1
group by substr(zip, 1, 4)
order by minutes desc;