ROW_NUMBER（）OVER PARTITION返回重複值

Question

以下查詢會在第一個分區集之後產生重複的row_numbers。例如，第一組fldPK = 2403和fldCIA = 1，收到以下...

2403 1 1 
2403 1 2 
2403 1 3 
2403 1 4 

和第二組中的我接收...

2403 2 1 
2403 2 1 <-- duplicate 1 within the same partition 
2403 2 2 
2403 2 3 

    SELECT *, 1 AS fldBF, 
       ROW_NUMBER() OVER (PARTITION BY fldPK, fldCIA ORDER BY fldPK) AS sCount 
    INTO #tmpTable 
    FROM V_qryCSPGA 
    WHERE fldPK IN(SELECT DISTINCT thePK FROM FN_qryAllDTPK()) 

    UNION ALL 

    SELECT *, 1 AS fldBF, 
       ROW_NUMBER() OVER (PARTITION BY fldPK, fldCIA ORDER BY fldPK) AS sCount 
    FROM FN_qryCSGBA() 
    WHERE fldPK IN(SELECT DISTINCT thePK FROM FN_qryAllDTPK()) 
    ORDER BY fldPK, fldCIA, fldNDat; 

爲什麼會發生這種情況？對於每一套fldPK和fldCIA的我需要重新啓動的行號數爲1，更正確的數據會...

2403 3 1 
2403 3 2 
2403 3 3 
2403 3 4 
2403 3 5 
2403 3 6 
2403 3 7 
2403 3 8 
2403 3 9 

Answer 1

這將停止重複的號碼。新的編號是否會被你的真實意圖，是另一件事：

; WITH cte AS 
    (SELECT *, 1 AS fldBF 
    FROM V_qryCSPGA 
    WHERE fldPK IN(SELECT DISTINCT thePK FROM FN_qryAllDTPK()) 

    UNION ALL 

    SELECT *, 1 AS fldBF 
    FROM FN_qryCSGBA() 
    WHERE fldPK IN(SELECT DISTINCT thePK FROM FN_qryAllDTPK()) 
) 
SELECT *, 
     ROW_NUMBER() OVER (PARTITION BY fldPK, fldCIA ORDER BY fldPK) AS sCount 
INTO #tmpTable 
FROM cte 
ORDER BY fldPK, fldCIA, fldNDat;