Question

我正在使用SQL SERVER 2008 R2。我希望得到多个值，并在同一时间逐行显示在单列中，如果值存在，则显示一些值，并且可能是单个列上'12值'的可能性。

Sample screenshot 2

例如，下面的屏幕截图，它显示除评论之外的相同数据的记录。我想显示为 单条记录， 但评论应显示 ASN及时性，ASN准确性，问题报告这两个值。这三个值使用相同的船舶“0096a”逐行显示。

Sample screenshot 1

我的示例查询，

SELECT 
    D30.SPGD30_SHIP_SITE_C AS SHIPSITE,  
    D30.SPGD30_RATING_MONTH_Y AS RATINGMONTH,  
    D30.SPGD30_PRIOR_SCORE_R AS PRIOR, 
    D30.SPGD30_REVISED_SCORE_R AS REVISED,  
    CASE WHEN (CHARINDEX('-',D30.SPGD30_TRACKED_ADJUSTMENT_X) > 0 ) THEN CONVERT( VARCHAR(8), CAST(D30.SPGD30_TRACKED_ADJUSTMENT_X AS DATETIME) , 1) ELSE D30.SPGD30_TRACKED_ADJUSTMENT_X END ADJUSTMENTS,  
    J02.SPGJ02_MSG_CODE_X AS COMMENTS,  
    D30.SPGD30_LAST_TOUCH_Y AS LASTUPDATED,  
    D30.SPGD30_LAST_TOUCH_C AS LASTUPDATEDCDSID   
FROM  
    CSPGD30_TRACKING D30, 
    CSPGD31_TRACKING_RATING_ELEMNT D31,  
    CSPGA04_RATING_ELEMENT_MSTR A04 , 
    CSPGJ02_MSG_OBJ J02  
WHERE  
    D30.SPGA02_BUSINESS_TYPE_C = D31.SPGA02_BUSINESS_TYPE_C  
AND 
    D30.SPGA03_REGION_C = D31.SPGA03_REGION_C  
AND 
    D30.SPGD30_SHIP_SITE_C = D31.SPGD30_SHIP_SITE_C  
AND 
    D30.SPGD30_RATING_MONTH_Y = D31.SPGD30_RATING_MONTH_Y  
AND 
    D30.SPGD30_TRACKED_ADJUSTMENT_X = D31.SPGD30_TRACKED_ADJUSTMENT_X  
AND 
    D30.SPGD30_LAST_TOUCH_Y = D31.SPGD30_LAST_TOUCH_Y  
AND 
    D31.SPGA04_RATING_ELEMENT_D = A04.SPGA04_RATING_ELEMENT_D  
AND 
    A04.SPGJ02_MSG_K = J02.SPGJ02_MSG_K  
AND 
    D30.SPGA02_BUSINESS_TYPE_C = 'serv'  
AND 
    D30.SPGA03_REGION_C = 'ap'  
AND 
    D30.SPGD30_SHIP_SITE_C = '0134a'  
ORDER BY   
    D30.SPGD30_SHIP_SITE_C ASC  ,
    D30.SPGD30_RATING_MONTH_Y DESC  ,
    D30.SPGD30_LAST_TOUCH_Y DESC

Answer 1

我认为有两种方法可以做到这一点。

首先，您可以在相关子查询中使用FOR XML PATH和STUFF。这会将CSPGJ02_MSG_OBJ中的值连接成一个字符串：

SELECT D30.SPGD30_SHIP_SITE_C AS SHIPSITE,  
    D30.SPGD30_RATING_MONTH_Y AS RATINGMONTH,  
    D30.SPGD30_PRIOR_SCORE_R AS PRIOR, 
    D30.SPGD30_REVISED_SCORE_R AS REVISED,  
    CASE WHEN (CHARINDEX('-',D30.SPGD30_TRACKED_ADJUSTMENT_X) > 0 ) THEN CONVERT( VARCHAR(8), CAST(D30.SPGD30_TRACKED_ADJUSTMENT_X AS DATETIME) , 1) ELSE D30.SPGD30_TRACKED_ADJUSTMENT_X END ADJUSTMENTS,  
     STUFF((SELECT distinct '+ ' + J02.SPGJ02_MSG_CODE_X
            from CSPGJ02_MSG_OBJ J02
            where A04.SPGJ02_MSG_K = J02.SPGJ02_MSG_K 
            FOR XML PATH(''), TYPE
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,2,'') COMMENTS,
    D30.SPGD30_LAST_TOUCH_Y AS LASTUPDATED,  
    D30.SPGD30_LAST_TOUCH_C AS LASTUPDATEDCDSID   
FROM CSPGD30_TRACKING D30
INNER JOIN CSPGD31_TRACKING_RATING_ELEMNT D31
    ON D30.SPGA02_BUSINESS_TYPE_C = D31.SPGA02_BUSINESS_TYPE_C  
    AND D30.SPGA03_REGION_C = D31.SPGA03_REGION_C  
    AND D30.SPGD30_SHIP_SITE_C = D31.SPGD30_SHIP_SITE_C  
    AND D30.SPGD30_RATING_MONTH_Y = D31.SPGD30_RATING_MONTH_Y  
    AND D30.SPGD30_TRACKED_ADJUSTMENT_X = D31.SPGD30_TRACKED_ADJUSTMENT_X  
    AND D30.SPGD30_LAST_TOUCH_Y = D31.SPGD30_LAST_TOUCH_Y  
INNER JOIN CSPGA04_RATING_ELEMENT_MSTR A04
    ON D31.SPGA04_RATING_ELEMENT_D = A04.SPGA04_RATING_ELEMENT_D  
WHERE D30.SPGA02_BUSINESS_TYPE_C = 'serv'  
    AND D30.SPGA03_REGION_C = 'ap'  
    AND D30.SPGD30_SHIP_SITE_C = '0134a'  
ORDER BY D30.SPGD30_SHIP_SITE_C ASC, D30.SPGD30_RATING_MONTH_Y DESC, D30.SPGD30_LAST_TOUCH_Y DESC;

第二种方法是使用CROSS APPLY和FOR XML PATH：

SELECT D30.SPGD30_SHIP_SITE_C AS SHIPSITE,  
    D30.SPGD30_RATING_MONTH_Y AS RATINGMONTH,  
    D30.SPGD30_PRIOR_SCORE_R AS PRIOR, 
    D30.SPGD30_REVISED_SCORE_R AS REVISED,  
    CASE WHEN (CHARINDEX('-',D30.SPGD30_TRACKED_ADJUSTMENT_X) > 0 ) THEN CONVERT( VARCHAR(8), CAST(D30.SPGD30_TRACKED_ADJUSTMENT_X AS DATETIME) , 1) ELSE D30.SPGD30_TRACKED_ADJUSTMENT_X END ADJUSTMENTS,  
    left(J02.comments, LEN(J02.comments)-1) AS COMMENTS,
    D30.SPGD30_LAST_TOUCH_Y AS LASTUPDATED,  
    D30.SPGD30_LAST_TOUCH_C AS LASTUPDATEDCDSID   
FROM CSPGD30_TRACKING D30
INNER JOIN CSPGD31_TRACKING_RATING_ELEMNT D31
    ON D30.SPGA02_BUSINESS_TYPE_C = D31.SPGA02_BUSINESS_TYPE_C  
    AND D30.SPGA03_REGION_C = D31.SPGA03_REGION_C  
    AND D30.SPGD30_SHIP_SITE_C = D31.SPGD30_SHIP_SITE_C  
    AND D30.SPGD30_RATING_MONTH_Y = D31.SPGD30_RATING_MONTH_Y  
    AND D30.SPGD30_TRACKED_ADJUSTMENT_X = D31.SPGD30_TRACKED_ADJUSTMENT_X  
    AND D30.SPGD30_LAST_TOUCH_Y = D31.SPGD30_LAST_TOUCH_Y  
INNER JOIN CSPGA04_RATING_ELEMENT_MSTR A04
    ON D31.SPGA04_RATING_ELEMENT_D = A04.SPGA04_RATING_ELEMENT_D  
CROSS APPLY
(
    select J02.SPGJ02_MSG_CODE_X  + ', '
    from CSPGJ02_MSG_OBJ J02
    where A04.SPGJ02_MSG_K = J02.SPGJ02_MSG_K  
    FOR XML PATH('')
) J02 (comments)
WHERE D30.SPGA02_BUSINESS_TYPE_C = 'serv'  
    AND D30.SPGA03_REGION_C = 'ap'  
    AND D30.SPGD30_SHIP_SITE_C = '0134a'  
ORDER BY D30.SPGD30_SHIP_SITE_C ASC, D30.SPGD30_RATING_MONTH_Y DESC, D30.SPGD30_LAST_TOUCH_Y DESC;

注意：您会注意到我将查询更改为使用JOIN语法而不是逗号分隔表与WHERE子句中的联接。这是标准的ANSI语法。

Answer 2

使用XML PATH（''）

SELECT 
    D30.SPGD30_SHIP_SITE_C AS SHIPSITE,  
    D30.SPGD30_RATING_MONTH_Y AS RATINGMONTH,  
    D30.SPGD30_PRIOR_SCORE_R AS PRIOR, 
    D30.SPGD30_REVISED_SCORE_R AS REVISED,  
    CASE WHEN (CHARINDEX('-',D30.SPGD30_TRACKED_ADJUSTMENT_X) > 0 ) THEN CONVERT( VARCHAR(8), CAST(D30.SPGD30_TRACKED_ADJUSTMENT_X AS DATETIME) , 1) ELSE D30.SPGD30_TRACKED_ADJUSTMENT_X END ADJUSTMENTS,  
    STUFF(JO2.COMMENTS, 1, 1, '') AS COMMENTS,  
    D30.SPGD30_LAST_TOUCH_Y AS LASTUPDATED,  
    D30.SPGD30_LAST_TOUCH_C AS LASTUPDATEDCDSID   
FROM  
    CSPGD30_TRACKING D30 
CROSS JOIN CSPGD31_TRACKING_RATING_ELEMNT D31
CROSS JOIN CSPGA04_RATING_ELEMENT_MSTR A04
CROSS APPLY (
    SELECT
        ',' + ISNULL(JO2.SPGJ02_MSG_CODE_X, '')
    FROM CSPGJ02_MSG_OBJ JO2  
    WHERE A04.SPGJ02_MSG_K = JO2.SPGJ02_MSG_K  
    FOR XML PATH('')
) AS JO2 (COMMENTS)
WHERE  
    D30.SPGA02_BUSINESS_TYPE_C = D31.SPGA02_BUSINESS_TYPE_C  
AND 
    D30.SPGA03_REGION_C = D31.SPGA03_REGION_C  
AND 
    D30.SPGD30_SHIP_SITE_C = D31.SPGD30_SHIP_SITE_C  
AND 
    D30.SPGD30_RATING_MONTH_Y = D31.SPGD30_RATING_MONTH_Y  
AND 
    D30.SPGD30_TRACKED_ADJUSTMENT_X = D31.SPGD30_TRACKED_ADJUSTMENT_X  
AND 
    D30.SPGD30_LAST_TOUCH_Y = D31.SPGD30_LAST_TOUCH_Y  
AND 
    D31.SPGA04_RATING_ELEMENT_D = A04.SPGA04_RATING_ELEMENT_D  
AND 
    D30.SPGA02_BUSINESS_TYPE_C = 'serv'  
AND 
    D30.SPGA03_REGION_C = 'ap'  
AND 
    D30.SPGD30_SHIP_SITE_C = '0134a'  
ORDER BY   
    D30.SPGD30_SHIP_SITE_C ASC  ,
    D30.SPGD30_RATING_MONTH_Y DESC  ,
    D30.SPGD30_LAST_TOUCH_Y DESC

这个将以逗号分隔的评论列表。

Answer 3

如果要在一个列中显示多个列，可以这样写：

SELECT CAST([MyIntegerId] AS varchar(10)) + ' - ' + [Column1]+ ' - ' +CAST([MyDateTimeColumn] AS varchar(10)) + ' - ' + [Column2] AS 'My Merged Column'
FROM Mytable

如果您想将多列分组为单个列作为字符串 - 这个article可以帮助您：

如何在SQL SERVER 2008 R2中逐行显示单个列中的多个值？

3 个答案: