如何从sql

Question

我有一个类似的查询：

SELECT NUM,
       PARAM_1 
FROM STOCK_CARD_PARAMETER WITH(NOLOCK) 
WHERE FK_STOCK_CARD IN (SELECT FK_sTOCK_CARD 
                        FROM STOCK_BARCODE WITH(NOLOCK) 
                        WHERE BARCODE = '2002002232364' )

它返回：

 NUM     PARAM_1
 1       İNDİRİMSİZ
 2       SEZON
 3       UNISEXYETISKIN

我必须得到这样的结果。 （并排）

İNDİRİMSİZ  SEZON UNISEXYETISKIN

为此，我执行两次相同的查询，如下所示：

INDIRIM = (SELECT PARAM_1 
           FROM STOCK_CARD_PARAMETER WITH(NOLOCK) 
           WHERE FK_STOCK_CARD IN (SELECT FK_sTOCK_CARD 
                                   FROM STOCK_BARCODE WITH(NOLOCK) 
                                   WHERE BARCODE = @BARKOD  AND NUM = 1)),
STATU = ( SELECT PARAM_1 
          FROM STOCK_CARD_PARAMETER WITH(NOLOCK) 
          WHERE  FK_STOCK_CARD IN (SELECT FK_sTOCK_CARD 
                                   FROM STOCK_BARCODE WITH(NOLOCK) 
                                   WHERE BARCODE = @BARKOD AND NUM = 2))

NUM列是此处的关键。如何将这两个查询组合在一起并获得结果？

Answer 1

使用SELECT [1], [2], [3] FROM (SELECT NUM, PARAM_1 FROM table) AS SourceTable PIVOT ( MAX(PARAM_1) FOR NUM IN ([1], [2], [3]) ) AS PivotTable;

WITH C(NUM, PARAM_1) AS(
    SELECT 1 ,  N'İNDİRİMSİZ' UNION ALL
    SELECT 2 ,  N'SEZON' UNION ALL
    SELECT 3 ,  N'UNISEXYETISKIN'
)

SELECT  [1], [2], [3]
FROM
(SELECT NUM, PARAM_1 
    FROM C) AS SourceTable
PIVOT
(
MAX(PARAM_1)
FOR NUM IN ([1], [2], [3])
) AS PivotTable;

带输出的示例数据

İNDİRİMSİZ  SEZON   UNISEXYETISKIN

输出

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