如何在SQL SERVER 2008 R2中逐行显示单个列中的多个值？

Question

我正在使用SQL SERVER 2008 R2.我想获取多个值并同时逐行显示在单个列中,如果值存在,则显示某些值,并且可能是单个列上'12值'的可能性.

例如,下面的屏幕截图显示了除注释之外的相同数据的记录.我想显示为单个记录,但评论应显示ASN及时性,ASN准确性,问题报告这两个值.使用相同的船舶"0096a"逐行显示这三个值.

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

我看到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.这会将值从CSPGJ02_MSG_OBJ单个字符串连接起来:

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;

第二种方法是使用一个CROSS APPLY带有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:您会注意到我更改了您的查询以使用JOIN语法而不是逗号分隔表与WHERE子句中的连接.这是标准的ANSI语法.