如何在SQL Server中进行转置？

Question

我使用下面显示的select语句显示以下数据。但我想根据客户和发货日期进行转置并创建一行

 PO    CUSTOMER  CUST PN     PN     DESC           QTY    SHIP DATE  
 001     xxx      111     100200    description1    24    2017-06-27
 002     xxx      112     100201    description2    25    2017-06-27

我想看如下

 PO1  PO2    CUSTOMER  CUST PN1  CUST PN2    PN1    PN2      DESC 1     DESC 2             QTY1   QTY2   SHIP DATE  
 001  002     xxx      111       112      100200  100201  description1 description2         24      25   2017-06-27

发货日期和客户字段将相同

这是我的SQL语句

SELECT  
    [PO #], [CUSTOMER], [CUST PN], [PN], [DESC], [QTY], [SHIP DATE]
FROM 
    (SELECT 
         [PO #], [CUSTOMER], [CUST PN], [PN], [DESC], [QTY], [SHIP DATE]
     FROM 
         WORKORDERS S
     WHERE   
         [SHIP BY] = DATEADD(day, -1, CONVERT(VARCHAR(11), GETDATE(), 106))) AS s

Answer 1

嘿，这是我对你的谜题的回答。我发现一个有趣但有SQL Server的agg列。请参阅脚本末尾的注释。此外，原谅代码中的任何混乱。妻子两次打电话给“孩子”。稍后会尝试清理......

DECLARE @workorders AS TABLE
(
    [PO #] NVARCHAR(10),
    [CUSTOMER] NVARCHAR(200),
    [CUST PN] INT,
    [PN] INT,
    [DESC] NVARCHAR(500),
    [QTY] INT,
    [SHIP DATE] DATE
);

--DECLARE @workorders_W_GroupingID AS TABLE
--(
--  groupingID INT,
--    [PO #] NVARCHAR(10),
--    [CUSTOMER] NVARCHAR(200),
--    [CUST PN] INT,
--    [PN] INT,
--    [DESC] NVARCHAR(500),
--    [QTY] INT,
--    [SHIP DATE] DATE
--);



INSERT @workorders
(
    [PO #],
    CUSTOMER,
    [CUST PN],
    PN,
    [DESC],
    QTY,
    [SHIP DATE]
)
VALUES
('001', N'xxx', 111, 100200, N'description1', 24, '2017-06-27'),
('002', N'xxx', 112, 100200, N'description2', 24, '2017-06-27'),
('003', N'xxx', 113, 100200, N'description3', 24, '2017-06-28'),
('004', N'xxx', 114, 100200, N'description4', 24, '2017-06-25'),
('005', N'aaa', 115, 100200, N'description5', 24, '2017-06-27'),
('006', N'aaa', 116, 100200, N'description6', 24, '2017-06-28'),
('007', N'aaa', 117, 100200, N'description7', 24, '2017-06-28'),
('008', N'ccc', 118, 100200, N'description8', 24, '2017-06-27'),
('009', N'xxx', 119, 100200, N'description9', 24, '2017-06-27');

--INSERT INTO @workorders_W_GroupingID
SELECT ROW_NUMBER() OVER (PARTITION BY S.CUSTOMER, S.[SHIP DATE] ORDER BY S.[PO #]) AS groupingID,
       S.*
INTO #workorders_W_GroupingID
FROM @workorders S;

SELECT * FROM #workorders_W_GroupingID;--DISPLAY

--COUNTER
DECLARE @CUNTER INT;
DECLARE @MAX_CUNTER INT;
SET @MAX_CUNTER =
(
    SELECT MAX(groupingID) FROM #workorders_W_GroupingID
);

DECLARE @query_Select NVARCHAR(MAX),
        @query_From NVARCHAR(MAX),
        @query_Into NVARCHAR(MAX),
        @query_OrderBy NVARCHAR(MAX),
        @query NVARCHAR(MAX);

SET @query_Select = N'SELECT ';
----PO----
WHILE (@CUNTER < @MAX_CUNTER)
BEGIN
    --ADD COLUMN
    SET @query_Select
        = @query_Select
          + (' CASE WHEN temp.groupingID = 1 THEN (SELECT PO FROM #workorders_W_GroupingID WHERE  customer = temp.customer AND [ship date] = temp.[ship date] AND GroupingID = '
          + CONVERT(NVARCHAR(100), @CUNTER) + ') END AS ' + N'PO' + CONVERT(NVARCHAR(100), @CUNTER) + ',');

    --INCREASE CUNTER
    SET @CUNTER = @CUNTER + 1;
END;
--RESET CUNTER
SET @CUNTER = 1;

----CUSTOMER----
SET @query_Select = @query_Select + (' CASE WHEN temp.groupingID = 1 THEN temp.CUSTOMER END AS' + N' customer, ');

----CUST PN----
WHILE (@CUNTER < @MAX_CUNTER)
BEGIN
    --ADD COLUMN
    SET @query_Select
        = @query_Select
          + (' CASE WHEN temp.groupingID = 1 THEN (SELECT [CUST PN] FROM #workorders_W_GroupingID WHERE  customer = temp.customer AND [ship date] = temp.[ship date] AND GroupingID = '
          + CONVERT(NVARCHAR(100), @CUNTER) + ') END AS ' + N'[CUST PN' + CONVERT(NVARCHAR(100), @CUNTER) + '],');

    --INCREASE CUNTER
    SET @CUNTER = @CUNTER + 1;
END;
--RESET CUNTER
SET @CUNTER = 1;

----PN----
WHILE (@CUNTER < @MAX_CUNTER)
BEGIN
    --ADD COLUMN
    SET @query_Select
        = @query_Select
          + (' CASE WHEN temp.groupingID = 1 THEN (SELECT PN FROM #workorders_W_GroupingID WHERE  customer = temp.customer AND [ship date] = temp.[ship date] AND GroupingID = '
          + CONVERT(NVARCHAR(100), @CUNTER) + ') END AS ' + N'PN' + CONVERT(NVARCHAR(100), @CUNTER) + ',');

    --INCREASE CUNTER
    SET @CUNTER = @CUNTER + 1;
END;
--RESET CUNTER
SET @CUNTER = 1;

----DESC----
WHILE (@CUNTER < @MAX_CUNTER)
BEGIN
    --ADD COLUMN
    SET @query_Select
        = @query_Select
          + (' CASE WHEN temp.groupingID = 1 THEN (SELECT [DESC] FROM #workorders_W_GroupingID WHERE  customer = temp.customer AND [ship date] = temp.[ship date] AND GroupingID = '
          + CONVERT(NVARCHAR(100), @CUNTER) + ') END AS ' + N'DESC' + CONVERT(NVARCHAR(100), @CUNTER) + ',');

    --INCREASE CUNTER
    SET @CUNTER = @CUNTER + 1;
END;
--RESET CUNTER
SET @CUNTER = 1;

----QTY----
WHILE (@CUNTER < @MAX_CUNTER)
BEGIN
    --ADD COLUMN
    SET @query_Select
        = @query_Select
          + (' CASE WHEN temp.groupingID = 1 THEN (SELECT QTY FROM #workorders_W_GroupingID WHERE  customer = temp.customer AND [ship date] = temp.[ship date] AND GroupingID = '
          + CONVERT(NVARCHAR(100), @CUNTER) + ') END AS ' + N'QTY' + CONVERT(NVARCHAR(100), @CUNTER) + ',');

    --INCREASE CUNTER
    SET @CUNTER = @CUNTER + 1;
END;
--RESET CUNTER
SET @CUNTER = 1;

----SHIP DATE----
SET @query_Select = @query_Select + (' CASE WHEN temp.groupingID = 1 THEN temp.[SHIP DATE] END AS' + N'[ship date] ');

SET @query_From = N'FROM #workorders_W_GroupingID AS temp  ';
SET @query_Into = N' INTO ##RESULTS_2017_06_28';
SET @query_OrderBy = N'Order by BY CUSTOMER, [SHIP DATE] ';

SET @query = @query_Select + ' ' + @query_Into + ' ' + @query_From; --+ -- ' ' + @query_GroupBy


 execute (@query);

SELECT * 
FROM ##RESULTS_2017_06_28
WHERE CUSTOMER IS NOT NULL
/*ORDER OF COLUMNS IS WRONG SEE https://stackoverflow.com/questions/982286/tsql-string-concat-with-select-and-order-by-does-not-work-with-function-in-order
  Currently do not see a way to fix. Data appears to be correct.
*/

/*
SELECT * 
FROM ##RESULTS_2017_06_28
WHERE CUSTOMER IS NOT NULL
ORDER BY
    CASE 
*/
DROP TABLE #workorders_W_GroupingID, ##RESULTS_2017_06_28;

更新的代码。发现了一些错误并修复了订单（由我的错误引起）。将原始代码保留在上面，但是BELOW是神奇的;）

--VARIABLES
DECLARE @workorders AS TABLE
(
    [PO] NVARCHAR(10),
    [CUSTOMER] NVARCHAR(200),
    [CUST PN] INT,
    [PN] INT,
    [DESC] NVARCHAR(500),
    [QTY] INT,
    [SHIP DATE] DATE
);

--COUNTER
DECLARE @CUNTER INT;
DECLARE @MAX_CUNTER INT;


--CREATE TEST DATA
INSERT @workorders
(
    [PO],
    CUSTOMER,
    [CUST PN],
    PN,
    [DESC],
    QTY,
    [SHIP DATE]
)
VALUES
('001', N'xxx', 111, 100200, N'description1', 24, '2017-06-27'),
('002', N'xxx', 112, 100200, N'description2', 24, '2017-06-27'),
('003', N'xxx', 113, 100200, N'description3', 24, '2017-06-28'),
('004', N'xxx', 114, 100200, N'description4', 24, '2017-06-25'),
('005', N'aaa', 115, 100200, N'description5', 24, '2017-06-27'),
('006', N'aaa', 116, 100200, N'description6', 24, '2017-06-28'),
('007', N'aaa', 117, 100200, N'description7', 24, '2017-06-28'),
('008', N'ccc', 118, 100200, N'description8', 24, '2017-06-27'),
('009', N'xxx', 119, 100200, N'description9', 24, '2017-06-27');

--INSERT INTO @workorders_W_GroupingID
SELECT ROW_NUMBER() OVER (PARTITION BY S.CUSTOMER, S.[SHIP DATE] ORDER BY S.[PO]) AS groupingID,
       S.*
INTO #workorders_W_GroupingID
FROM @workorders S;

SELECT * FROM #workorders_W_GroupingID;--DISPLAY

--INITIALIZE COUNTER VARIABLES
SET @MAX_CUNTER =
(
    SELECT MAX(groupingID) + 1 FROM #workorders_W_GroupingID
);
SET @CUNTER = 1;

DECLARE @query_Select NVARCHAR(MAX),
        @query_From NVARCHAR(MAX),
        @query_Into NVARCHAR(MAX),
        @query_OrderBy NVARCHAR(MAX),
        @query NVARCHAR(MAX);

SET @query_Select = N'SELECT ';
----PO----
WHILE (@CUNTER < @MAX_CUNTER)
BEGIN
    --ADD COLUMN
    SET @query_Select
        = @query_Select
          + (' CASE WHEN temp.groupingID = 1 THEN (SELECT PO FROM #workorders_W_GroupingID WHERE  customer = temp.customer AND [ship date] = temp.[ship date] AND GroupingID = '
          + CONVERT(NVARCHAR(100), @CUNTER) + ') END AS ' + N'PO' + CONVERT(NVARCHAR(100), @CUNTER) + ',');

    --INCREASE CUNTER
    SET @CUNTER = @CUNTER + 1;
END;
--RESET CUNTER
SET @CUNTER = 1;

----CUSTOMER----
SET @query_Select = @query_Select + (' CASE WHEN temp.groupingID = 1 THEN temp.CUSTOMER END AS' + N' customer, ');

----CUST PN----
WHILE (@CUNTER < @MAX_CUNTER)
BEGIN
    --ADD COLUMN
    SET @query_Select
        = @query_Select
          + (' CASE WHEN temp.groupingID = 1 THEN (SELECT [CUST PN] FROM #workorders_W_GroupingID WHERE  customer = temp.customer AND [ship date] = temp.[ship date] AND GroupingID = '
          + CONVERT(NVARCHAR(100), @CUNTER) + ') END AS ' + N'[CUST PN' + CONVERT(NVARCHAR(100), @CUNTER) + '],');

    --INCREASE CUNTER
    SET @CUNTER = @CUNTER + 1;
END;
--RESET CUNTER
SET @CUNTER = 1;

----PN----
WHILE (@CUNTER < @MAX_CUNTER)
BEGIN
    --ADD COLUMN
    SET @query_Select
        = @query_Select
          + (' CASE WHEN temp.groupingID = 1 THEN (SELECT PN FROM #workorders_W_GroupingID WHERE  customer = temp.customer AND [ship date] = temp.[ship date] AND GroupingID = '
          + CONVERT(NVARCHAR(100), @CUNTER) + ') END AS ' + N'PN' + CONVERT(NVARCHAR(100), @CUNTER) + ',');

    --INCREASE CUNTER
    SET @CUNTER = @CUNTER + 1;
END;
--RESET CUNTER
SET @CUNTER = 1;

----DESC----
WHILE (@CUNTER < @MAX_CUNTER)
BEGIN
    --ADD COLUMN
    SET @query_Select
        = @query_Select
          + (' CASE WHEN temp.groupingID = 1 THEN (SELECT [DESC] FROM #workorders_W_GroupingID WHERE  customer = temp.customer AND [ship date] = temp.[ship date] AND GroupingID = '
          + CONVERT(NVARCHAR(100), @CUNTER) + ') END AS ' + N'DESC' + CONVERT(NVARCHAR(100), @CUNTER) + ',');

    --INCREASE CUNTER
    SET @CUNTER = @CUNTER + 1;
END;
--RESET CUNTER
SET @CUNTER = 1;

----QTY----
WHILE (@CUNTER < @MAX_CUNTER)
BEGIN
    --ADD COLUMN
    SET @query_Select
        = @query_Select
          + (' CASE WHEN temp.groupingID = 1 THEN (SELECT QTY FROM #workorders_W_GroupingID WHERE  customer = temp.customer AND [ship date] = temp.[ship date] AND GroupingID = '
          + CONVERT(NVARCHAR(100), @CUNTER) + ') END AS ' + N'QTY' + CONVERT(NVARCHAR(100), @CUNTER) + ',');

    --INCREASE CUNTER
    SET @CUNTER = @CUNTER + 1;
END;
--RESET CUNTER
SET @CUNTER = 1;

----SHIP DATE----
SET @query_Select = @query_Select + (' CASE WHEN temp.groupingID = 1 THEN temp.[SHIP DATE] END AS' + N'[ship date] ');

SET @query_From = N'FROM #workorders_W_GroupingID AS temp  ';
SET @query_Into = N' INTO ##RESULTS_2017_06_28';
SET @query_OrderBy = N'Order by BY CUSTOMER, [SHIP DATE] ';

SET @query = @query_Select + ' ' + @query_Into + ' ' + @query_From; --+ -- ' ' + @query_GroupBy


 execute (@query);

SELECT * 
FROM ##RESULTS_2017_06_28
WHERE CUSTOMER IS NOT NULL
/*ORDER OF COLUMNS IS WRONG SEE https://stackoverflow.com/questions/982286/tsql-string-concat-with-select-and-order-by-does-not-work-with-function-in-order
  Currently do not see a way to fix. Data appears to be correct.
*/

/*
SELECT * 
FROM ##RESULTS_2017_06_28
WHERE CUSTOMER IS NOT NULL
ORDER BY
    CASE 
*/
DROP TABLE #workorders_W_GroupingID, ##RESULTS_2017_06_28;

/*Results
PO1 PO2 PO3 customer    CUST PN1    CUST PN2    CUST PN3    PN1 PN2 PN3 DESC1   DESC2   DESC3   QTY1    QTY2    QTY3    ship date
005 NULL    NULL    aaa 115 NULL    NULL    100200  NULL    NULL    description5    NULL    NULL    24  NULL    NULL    2017-06-27
006 007 NULL    aaa 116 117 NULL    100200  100200  NULL    description6    description7    NULL    24  24  NULL    2017-06-28
008 NULL    NULL    ccc 118 NULL    NULL    100200  NULL    NULL    description8    NULL    NULL    24  NULL    NULL    2017-06-27
004 NULL    NULL    xxx 114 NULL    NULL    100200  NULL    NULL    description4    NULL    NULL    24  NULL    NULL    2017-06-25
001 002 009 xxx 111 112 119 100200  100200  100200  description1    description2    description9    24  24  24  2017-06-27
003 NULL    NULL    xxx 113 NULL    NULL    100200  NULL    NULL    description3    NULL    NULL    24  NULL    NULL    2017-06-28
*/