用 case 語句聚合 function

Question

我正在嘗試將聚合 function 與 CASE 語句一起使用，但語法不正確。
我附上了示例代碼，並附上了關於我想要實現的目標的問題，但我收到了語法錯誤。

count(case when weekminus1 = 0 and week0 = 1 then distinct(asin) end) as asin_added,
count(case when weekminus1 = 0 and week0 = 1 then distinct(fnsku) end) as fnsku_added,

任何線索都會有所幫助。

Answer 1

你想表達為：

count(distinct case when weekminus1 = 0 and week0 = 1 then asin end) as asin_added,
count(distinct case when weekminus1 = 0 and week0 = 1 thenfnsku end) as fnsku_added,