1111（HY000）：無法使用組功能|無法使用組功能THEN欄目查詢

在下面查詢的，我不能夠使用1111（HY000）：無法使用組功能|無法使用組功能THEN欄目查詢

THEN count(DISTINCT(workflow_link.email_api_response_packets.parent_id))

語法，任何幫助，在此表示讚賞。

SELECT workflow_link.email_api_response_packets.subscriber_id 
    , count(DISTINCT(workflow_link.email_api_response_packets.parent_id)) as cnt 
    , SUM(CASE WHEN (workflow_link.email_api_response_packets.action = 'O' 
         AND workflow_link.email_api_response_packets.parent_id IS NOT NULL 
       THEN count(DISTINCT(workflow_link.email_api_response_packets.parent_id)) 
       ELSE 0 
       END)*100/SUM(CASE WHEN (workflow_link.email_api_response_packets.id 
             AND workflow_link.email_api_response_packets.parent_id IS NULL) 
            THEN 1 
            ELSE 0 
            END) AS percentage 
FROM workflow_link.email_api_response_packets 
WHERE workflow_link.email_api_response_packets.updated_at >= 1403929223 
    AND workflow_link.email_api_response_packets.updated_at <= 1503929479 
    AND workflow_link.email_api_response_packets.list_id IN (400) 
    AND workflow_link.email_api_response_packets.is_test = 0 
GROUP BY workflow_link.email_api_response_packets.subscriber_id 
HAVING percentage >= 0

來源

2017-08-29 Abhishek

你試過計數（DISTINCT工作流程...）嗎？（即沒有內部支架） – etsa

在第一個「CASE WHEN」時出現括號問題：在WHEN部分之後打開它，但在END之後關閉它。所以在'IS NOT NULL'之後缺少一個括號。 – waka

@etsa，謝謝你的評論我已經試過建議的方式，但沒有運氣同樣的錯誤 – Abhishek

試試這個。我也刪除了所有不必要的括號。

SUM(CASE WHEN workflow_link.email_api_response_packets.action = 'O' 
       AND workflow_link.email_api_response_packets.parent_id IS NOT NULL 
     THEN count(DISTINCT workflow_link.email_api_response_packets.parent_id) 
     ELSE 0 END 
    ) * 100 
    /SUM(CASE WHEN workflow_link.email_api_response_packets.id 
         AND workflow_link.email_api_response_packets.parent_id IS NULL 
       THEN 1 
       ELSE 0 END) AS percentage

來源

2017-08-29 14:45:35 etsa

它不工作，謝謝你的回答 – Abhishek

我認爲你不能做構造SUM（COUNT（..））。所以你必須重寫你的查詢。如果您使用創建/插入腳本和類似的查詢發佈更簡單的結構，我可以嘗試幫助您。 – etsa

1111（HY000）：無法使用組功能|無法使用組功能THEN欄目查詢

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