案例陈述计数

Question

有人可以帮助我吗？ 我在 BigQuery 上，我想要一个如下表；

结果	订单计数
低	215
中	379
高	90

with base_table as (
select order_id, o.customer_id, count( order_id) as count_of_order
from `orders_table` o
join `customers_table` c on o.customer_id = c.customer_id
group by 1,2
)
select 
case 
  when base_table.count_of_order < 500 then "low"
  when base_table.count_of_order between 501 and 1000 then "mid" 
  when base_table.count_of_order > 1000 then "high"
  else null 
  end as result,
count_of_order
from base_table
group by 1,2

Answer 1

只需在

sum

上添加

count_of_order

即可？

with base_table as (
select order_id, o.customer_id, count( order_id) as count_of_order
from `orders_table` o
join `customers_table` c on o.customer_id = c.customer_id
group by 1,2
)
select 
case 
  when base_table.count_of_order < 500 then "low"
  when base_table.count_of_order between 501 and 1000 then "mid" 
  when base_table.count_of_order > 1000 then "high"
  else null 
  end as result,
sum(count_of_order) AS count_of_order
from base_table
group by 1