Question

我有以下代码，我无法弄清楚如何不将这些包含在组中。一些论据纯粹是针对这种情况而已。我不能把它们包含在小组中。由于我只需要通过TransactionTyp获取计数，但我仍然没有真正按任何其他方式进行分组，但我一直收到此错误：在选择列表中无效，因为它不包含在聚合函数或GROUP BY子句中。

使用CASE可能是错误的方法吗？但我需要根据其他字段替换一些值。

这也是在MS SQL中。

SELECT  Count(*), 
    CASE 
        WHEN a.TransactionTyp IS NOT NULL THEN a.TransactionTyp
        WHEN a.ClaimStatus = 'Resolved-Deflected' THEN 'Deflected'
        WHEN a.ClaimStatus = 'Resolved-NoAction' THEN 'Deflected'
        WHEN a.ClaimStatus = 'Open' AND b.AssignOperator = 'PendClaim.NF_POS_Pinless' THEN 'Affiliate'
    END As TransactionTyp
FROM Table1 a
LEFT JOIN Table2 b
    ON a.ClaimNbr = b.ClaimDisputeNbr AND b.CreateDte = Convert(varchar,GetDate(), 101)
WHERE a.ClaimEntryDte = Convert(varchar,GetDate(),101)    
AND a.ClaimTypCd  IN ('DEBS', 'DEBSI', 'DBCIN', 'DBCUS')
GROUP BY TransactionTyp

Answer 1

一个问题可能是您无法在group by子句中引用别名。尝试重复case中的group by定义：

GROUP BY
    CASE 
        WHEN a.TransactionTyp IS NOT NULL THEN a.TransactionTyp
        WHEN a.ClaimStatus = 'Resolved-Deflected' THEN 'Deflected'
        WHEN a.ClaimStatus = 'Resolved-NoAction' THEN 'Deflected'
        WHEN a.ClaimStatus = 'Open' AND b.AssignOperator = 'PendClaim.NF_POS_Pinless' THEN 'Affiliate'
    END As TransactionTyp

或者，使用子查询来定义别名：

select  TransactionTyp
,       count(*)
from    (
        SELECT  CASE 
                WHEN a.TransactionTyp IS NOT NULL THEN a.TransactionTyp
                WHEN a.ClaimStatus = 'Resolved-Deflected' THEN 'Deflected'
                WHEN a.ClaimStatus = 'Resolved-NoAction' THEN 'Deflected'
                WHEN a.ClaimStatus = 'Open' AND b.AssignOperator = 'PendClaim.NF_POS_Pinless' THEN 'Affiliate'
                END As TransactionTyp
        FROM    Table1 a
        LEFT JOIN 
                Table2 b
        ON      a.ClaimNbr = b.ClaimDisputeNbr 
                AND b.CreateDte = Convert(varchar,GetDate(), 101)
        WHERE   a.ClaimEntryDte = Convert(varchar,GetDate(),101)    
                AND a.ClaimTypCd  IN ('DEBS', 'DEBSI', 'DBCIN', 'DBCUS')
        )
GROUP BY 
        TransactionTyp

Answer 2

CASE必须在Group BY声明中，而不是ID。

像这样：

GROUP BY CASE 
    WHEN a.TransactionTyp IS NOT NULL THEN a.TransactionTyp
    WHEN a.ClaimStatus = 'Resolved-Deflected' THEN 'Deflected'
    WHEN a.ClaimStatus = 'Resolved-NoAction' THEN 'Deflected'
    WHEN a.ClaimStatus = 'Open' AND b.AssignOperator = 'PendClaim.NF_POS_Pinless' THEN 'Affiliate'
END

Answer 3

当您指定从查询返回的内容时，结果已经被分组，因此您要返回的任何内容都必须在group by中指定。

这个解决方案是创建一个计算值的子查询，然后你可以对子查询中的结果进行分组：

SELECT Count(*), TransactionTyp
FROM (
  SELECT
    CASE 
        WHEN a.TransactionTyp IS NOT NULL THEN a.TransactionTyp
        WHEN a.ClaimStatus = 'Resolved-Deflected' THEN 'Deflected'
        WHEN a.ClaimStatus = 'Resolved-NoAction' THEN 'Deflected'
        WHEN a.ClaimStatus = 'Open' AND b.AssignOperator = 'PendClaim.NF_POS_Pinless' THEN 'Affiliate'
    END As TransactionTyp
  FROM Table1 a
  LEFT JOIN Table2 b
    ON a.ClaimNbr = b.ClaimDisputeNbr AND b.CreateDte = Convert(varchar,GetDate(), 101)
  WHERE a.ClaimEntryDte = Convert(varchar,GetDate(),101)    
  AND a.ClaimTypCd  IN ('DEBS', 'DEBSI', 'DBCIN', 'DBCUS')
) as x
GROUP BY TransactionTyp

Answer 4

不通过如何获取当前日期结果或当前月份结果在组上添加 create_on

select segment_name, 
cast(SUM(case when t1.create_on=GETDATE()) then actual_total_sale    as currentDateData,
cast(SUM(case when MONTH(create_on) = MONTH(getDate()) then actual_total_sale    as currentMonthData,
 from 
PR_DAILY_AOP_TARGET t1
where is_active=1 group by segment_name

使用CASE中的字段而不使用group by

4 个答案: