如何在 HANA SQL 中编写 CASE WHEN COUNT

Question

以下列给我计数：

COUNT("COMPLIANCE"."CD_ALL"."ProductCode") As "Active Contracts"

但是，我想将计数总数放入桶中。 这是我尝试过的：

case when (COUNT("COMPLIANCE"."CD_ALL"."ProductCode")) between 0 and 10 then '10 or less',

case when (COUNT("COMPLIANCE"."CD_ALL"."ProductCode")) between 11 and 20 then '11-20',

等等...

我在这里做错了什么？

Answer 1

我认为你想要一个单一的case表达：

(case when (COUNT("COMPLIANCE"."CD_ALL"."ProductCode")) <= 10 then '10 or less'

      when (COUNT("COMPLIANCE"."CD_ALL"."ProductCode")) <= 20 then '11-20'
      else 'That many!!!'
end) as count_bucket