Question

我不是开发人员，但在开发人员帮助之前需要完成这项工作...... 我有以下几点;这是有效的，但我需要一个WHERE进入选择，使其正确，它告诉我，我需要添加到组。当我这样做时，它会“重复”结果。

什么有效：

Select  ALTEXTCUSTREF
    ,(SELECT AVG(C.SALESPRICE*C.QTY)) AS Budget
    ,select SUM(B.LEDGERSALESAMOUNT) as Labour 
from SMMACTIVITIES AS A
LEFT JOIN PROJEMPLTRANS AS B ON A.ACTIVITYNUMBER=B.ACTIVITYNUMBER
LEFT JOIN PROJFORECASTEMPL AS C ON A.ACTIVITYNUMBER=C.ACTIVITYNUMBER
WHERE A.ACTIVITYNUMBER LIKE '1234%'
group by A.ALTEXTCUSTREF, C.ACTIVITYNUMBER

但我需要在B.LEDGERSALESAMOUNT上加上条件，所以我做了以下事情;

Select  ALTEXTCUSTREF
    ,(SELECT AVG(C.SALESPRICE*C.QTY)) AS Budget
    ,(select SUM(B.LEDGERSALESAMOUNT) where B.CATEGORYID NOT LIKE 'P_%')  as Labour 
from SMMACTIVITIES AS A
LEFT JOIN PROJEMPLTRANS AS B ON A.ACTIVITYNUMBER=B.ACTIVITYNUMBER
LEFT JOIN PROJFORECASTEMPL AS C ON A.ACTIVITYNUMBER=C.ACTIVITYNUMBER
WHERE A.ACTIVITYNUMBER LIKE '1234%'
group by A.ALTEXTCUSTREF, C.ACTIVITYNUMBER

我收到了这个错误：

Msg 8120，Level 16，State 1，Line 4 Column'PROJEMPLTRANS.CATEGORYID' 在选择列表中无效，因为它不包含在任何一个中聚合函数或GROUP BY子句。

但如果我将B.CATEGORYID放入群组中，我会将ALTEXTCUSTREF的行分开，这是不正确的。

请帮忙。我被困住了，没时间了。

Answer 1

编辑为OP的新意图

    SELECT bg.altextcustref
    ,bg.activitynumber
    ,bg.budget
    ,lb.labour
FROM
(
    SELECT altextcustref
        ,activitynumber
        ,AVG(c.salesprice * c.qty) AS budget
    FROM smmactivities AS a
    LEFT JOIN projforecastempl AS c 
    ON a.activitynumber = c.activitynumber
    WHERE a.activitynumber LIKE '1234%'
    GROUP BY a.altextcustref, c.activitynumber
) AS bg
INNER JOIN
(
    SELECT altextcustref
        ,activitynumber
        ,SUM(b.ledgersalesamount) AS labour
    FROM smmactivities AS a
    LEFT JOIN projempltrans AS b 
    ON a.activitynumber = b.activitynumber
    WHERE a.activitynumber LIKE '1234%'
        AND b.categoryid NOT LIKE 'P_%'
    GROUP BY a.altextcustref, c.activitynumber
) AS lb
ON bg.altextcustref = lb.altextcustref 
    AND bg.activitynumber = lb.activitynumber;

为什么需要分组？

1 个答案: