加入2條查詢，可動態創建相同的字段

我有一張表，我想創建一些圖表。基本上我需要知道在10分鐘的時間間隔內有多少個寄存器，以及它們中有多少個已經進行了後處理。有了這2個查詢我有我需要的信息，但我只需要他們2在1結果表。加入2條查詢，可動態創建相同的字段

首先查詢

SELECT 
    (
     CAST(DATEPART(HOUR, m.Ocr_DataHora) AS NVARCHAR) + 
     ':' + 
     CAST((DATEPART(MINUTE, m.Ocr_DataHora) % 6) AS NVARCHAR) + 
     '0'   
    )          AS Hora, 
    COUNT(*)        AS Movimentações 
FROM 
    Integracao m 
WHERE 
     m.Ocr_DataHora  >= '2012-09-17 00:00:00.000' 
    AND m.Ocr_DataHora  < '2012-09-18 00:00:00.000' 
GROUP BY   
    DATEPART(HOUR, m.Ocr_DataHora), 
    (DATEPART(MINUTE, m.Ocr_DataHora) % 6) 
ORDER BY  
    DATEPART(HOUR, m.Ocr_DataHora), 
    (DATEPART(MINUTE, m.Ocr_DataHora) % 6)

第二查詢，如果是動態生成的我的共同領域

SELECT 
    (
     CAST(DATEPART(HOUR, s.Ocr_DataHora) AS NVARCHAR) + 
     ':' + 
     CAST((DATEPART(MINUTE, s.Ocr_DataHora) % 6) AS NVARCHAR) + 
     '0'   
    )          AS Hora, 
    COUNT(*)        AS Sucesso 
FROM 
    Integracao s 
WHERE 
     s.Veiculo_Modelo <> '' 
    AND s.Ocr_DataHora  >= '2012-09-17 00:00:00.000' 
    AND s.Ocr_DataHora  < '2012-09-18 00:00:00.000' 
GROUP BY   
    DATEPART(HOUR, s.Ocr_DataHora), 
    (DATEPART(MINUTE, s.Ocr_DataHora) % 6)

我怎麼能加入他們的行列？

來源

2012-09-20 Thiago Bernabé

正如其他人已經告訴過你，你可以只使用兩個查詢的派生表（子選擇）並使用各自的Hora列加入。如果在查詢中計算列，則無關緊要，在連接條件中使用它是完全合法的。

但是，我認爲你可以通過在一個查詢中計算兩個計數（即沒有子查詢）來更有效地得到相同的結果。這裏是你如何能做到這一點：

SELECT 
    (
     CAST(DATEPART(HOUR, m.Ocr_DataHora) AS NVARCHAR) + 
     ':' + 
     CAST((DATEPART(MINUTE, m.Ocr_DataHora) % 6) AS NVARCHAR) + 
     '0'   
    )             AS Hora, 
    COUNT(*)           AS Movimentações, 
    COUNT(CASE WHEN s.Veiculo_Modelo <> '' THEN 1 END) AS Sucesso 
FROM 
    Integracao m 
WHERE 
     m.Ocr_DataHora  >= '2012-09-17 00:00:00.000' 
    AND m.Ocr_DataHora  < '2012-09-18 00:00:00.000' 
GROUP BY   
    DATEPART(HOUR, m.Ocr_DataHora), 
    (DATEPART(MINUTE, m.Ocr_DataHora) % 6) 
ORDER BY  
    DATEPART(HOUR, m.Ocr_DataHora), 
    (DATEPART(MINUTE, m.Ocr_DataHora) % 6)

正如你所看到的，查詢不上s.Veiculo_Modelo <> ''過濾行。但是，在計算Sucesso列的行時使用該條件。第二個COUNT的論點是一個CASE表達式。如果滿足指定的條件，它會返回一個值（任意選擇爲1，但可能是任何其他值），否則返回NULL。由於COUNT省略了空值，因此結果將與您的專用查詢計算並返回Sucesso相同。

來源

2012-09-20 19:39:07

我真的從來沒有，雖然我可以做計數的情況下聲明！：O即使在文檔中沒有提及任何東西！ –

我假設你所要的輸出如下：

Hora | Movimentações | Sucesso

您可以使用兩個SQL查詢，就好像它們是使用WITH聲明表如下：

WITH 
firstQuery(Hora, Movimentações) AS (<first query definition with out ORDER BY >), 
secondQuery(Hora, Sucesso) AS (<second query definition with out ORDER BY >) 
SELECT 
    f.Hora, f.Movimentações , s.Sucesso 
FROM 
    firstQuery f 
    JOIN secondQuery s 
    ON f.Hora = s.Hora

來源

2012-09-20 19:00:07 Vikdor

您應該可以通過將它們放入from子句中的子查詢來完成此操作。我指的方式有以下形式：

Select A.Hora,A.Movimentações,B.Sucesso 
From (*First Query*) as A 
inner join (*Second Query*) as B on A.Hora = B.Hora

最終結果是：

Select A.Hora,A.Movimentações,B.Sucesso 
From (SELECT 
    (
     CAST(DATEPART(HOUR, m.Ocr_DataHora) AS NVARCHAR) + 
     ':' + 
     CAST((DATEPART(MINUTE, m.Ocr_DataHora) % 6) AS NVARCHAR) + 
     '0'   
    )          AS Hora, 
    COUNT(*)        AS Movimentações 
FROM 
    Integracao m 
WHERE 
     m.Ocr_DataHora  >= '2012-09-17 00:00:00.000' 
    AND m.Ocr_DataHora  < '2012-09-18 00:00:00.000' 
GROUP BY   
    DATEPART(HOUR, m.Ocr_DataHora), 
    (DATEPART(MINUTE, m.Ocr_DataHora) % 6) 
ORDER BY  
    DATEPART(HOUR, m.Ocr_DataHora), 
    (DATEPART(MINUTE, m.Ocr_DataHora) % 6)) As A 
inner join (SELECT 
    (
     CAST(DATEPART(HOUR, s.Ocr_DataHora) AS NVARCHAR) + 
     ':' + 
     CAST((DATEPART(MINUTE, s.Ocr_DataHora) % 6) AS NVARCHAR) + 
     '0'   
    )          AS Hora, 
    COUNT(*)        AS Sucesso 
FROM 
    Integracao s 
WHERE 
     s.Veiculo_Modelo <> '' 
    AND s.Ocr_DataHora  >= '2012-09-17 00:00:00.000' 
    AND s.Ocr_DataHora  < '2012-09-18 00:00:00.000' 
GROUP BY   
    DATEPART(HOUR, s.Ocr_DataHora), 
    (DATEPART(MINUTE, s.Ocr_DataHora) % 6)) As B on B.Hora = A.Hora

來源

2012-09-20 19:05:04 Bryan

加入2條查詢，可動態創建相同的字段

回答

相關問題