Question

我有这个查询。

SELECT DISTINCT
       'CONTRACT',
       CO.OBJID,
       CO.ORDERNUMBER
       (SELECT SUM(CASE WHEN CT.SHORTNAME = 'BGL'
                        THEN TG.QUANTITY
                        ELSE 0 END) AS Cartons,
               SUM(CASE WHEN CT.SHORTNAME = 'CT'
                        THEN TG.QUANTITY
                        ELSE 0 END) AS Boxes,
               SUM(CASE WHEN CT.SHORTNAME = 'PL'
                        THEN TG.QUANTITY
                        ELSE 0 END) AS Trailer
        FROM   GOODS TG,
               XTYPE CT 
        WHERE  TG.ORDERID = CO.OBJID 
        AND    TG.CONTOBJECTID = CT.OBJID 
        AND    CT.SHORTNAME IN ('BGL', 'CT', 'PL')
       ) 
FROM   XCUSTORDER CO,
       XEDIPARTNER EP
WHERE  CIP.CUSTOID = CO.OBJECTID 
AND    CO.EDIPARTNER_OBJECTID = EP.OBJECTID
AND    EP.ILNNUMBER = 'NASA'

查询不起作用我怎样才能获得我需要的结果。我不想为每个纸箱，盒子和预告片运行不同的选择

Answer 1

尝试：如果您想在单个查询中执行所有操作。您必须单独查询每列，如下所示。我不确定它会起作用，因为它没有经过测试，但我相信它会给你一个好主意。您正在加入CIP.CUSTOID，但在查询中的任何位置都没有提到包含CIP别名的表格，因此我在第二个查询中执行了EP。

SELECT DISTINCT
       'CONTRACT',
       CO.OBJID,
       CO.ORDERNUMBER,
       (SELECT SUM(TG.QUANTITY)
        FROM   GOODS TG,
               XTYPE CT 
        WHERE  TG.ORDERID = CO.OBJID 
        AND    TG.CONTOBJECTID = CT.OBJID 
        AND    CT.SHORTNAME IN ('BGL')) AS Cartons,

        (SELECT SUM(TG.QUANTITY)
        FROM   GOODS TG,
               XTYPE CT 
        WHERE  TG.ORDERID = CO.OBJID 
        AND    TG.CONTOBJECTID = CT.OBJID 
        AND    CT.SHORTNAME IN ('CT')) AS Boxes,

        (SELECT SUM(TG.QUANTITY)
        FROM   GOODS TG,
               XTYPE CT 
        WHERE  TG.ORDERID = CO.OBJID 
        AND    TG.CONTOBJECTID = CT.OBJID 
        AND    CT.SHORTNAME IN ('PL')) AS Trailer
FROM   XCUSTORDER CO,
       XEDIPARTNER EP
WHERE  CIP.CUSTOID = CO.OBJECTID 
AND    CO.EDIPARTNER_OBJECTID = EP.OBJECTID
AND    EP.ILNNUMBER = 'NASA'

您可以通过以下方式更改查询：

SELECT
    'CONTRACT',
    CO.OBJID,
    CO.ORDERNUMBER,
    SUM(CASE WHEN CT.SHORTNAME = 'BGL'
            THEN TG.QUANTITY
            ELSE 0 END) AS Cartons,
    SUM(CASE WHEN CT.SHORTNAME = 'CT'
            THEN TG.QUANTITY
            ELSE 0 END) AS Boxes,
    SUM(CASE WHEN CT.SHORTNAME = 'PL'
            THEN TG.QUANTITY
            ELSE 0 END) AS Trailer
FROM XCUSTORDER CO
INNER JOIN XEDIPARTNER EP ON  EP.CUSTOID = CO.OBJECTID 
    AND CO.EDIPARTNER_OBJECTID = EP.OBJECTID
    AND EP.ILNNUMBER = 'NASA'
LEFT JOIN GOODS TG ON TG.ORDERID = CO.OBJID
LEFT JOIN XTYPE CT ON TG.CONTOBJECTID = CT.OBJID
    AND CT.SHORTNAME IN ('BGL', 'CT', 'PL')
GROUP BY CO.OBJID,
    CO.ORDERNUMBER

SUM CASE和IN条件中的子查询

1 个答案: