Question

我有以下的SQL查询

select sta_name Station,count(factory_name) as factories from gps1
group by sta_name
order by sta_name

通过这个查询我只得到一个工作站的总工厂。问题是我想得到的结果形状，工厂编号也应该显示在Station For Exampel的工厂总数中如果一个工作站有5个因素然后五个工厂应该有这个输出

1/5
2/5
3/5
4/5
5/5

任何人请帮助我得到这种结果的更新我想要这个输出例如我在车站1有5家工厂

factoryName      Count
factroty 1        1/5
factroty 2        2/5
factroty 3        3/5
factroty 4        4/5
factroty 5        5/5

Answer 1

将计数转换为分析函数并删除分组：

select sta_name Station,count(factory_name) over(partition by sta_name) as factories from gps1
order by sta_name

当然，如果您想要1/5，请将其更改为：

select sta_name||'/'||count(factory_name) over(partition by sta_name) as factories from gps1
order by sta_name

编辑：将其标记为“1个满分5”，“2个满分5”等，然后您可以添加row_number：

select   FACTORY_NAME
        ,   row_number() over (partition by STA_NAME order by STA_NAME)
         || '/'
         || count(STA_NAME) over (partition by STA_NAME)
           as FACTORIES
from     GPS1
order by FACTORY_NAME

在oracle中使用分组列获取行数

1 个答案: