Question

一个Policy Number可以有多个不同的ClassCode，只有一个Premium的总金额。在我的SSRS报告中，我希望能够创建参数ClassCode，如果我排除（取消选中）至少其中一个ClassCode，则整个保单的政策编号不需要在计算中。可以说，如果我要排除ClassCode 58，则1,644.00的Premium不应该出现在我的报告中。

我试图在我的查询AND ClassCode <> 58中说，但它只排除了一行并保留了Premium。但我的目标是排除所有内容，如果它有ClassCode 58。

SELECT policynumber,
       classcode,
       /*
       Using ROW_NUMBER() to check if it's the first record in the join and returns the Premium value if so, otherwise it will display 0. 
       The ORDER BY (SELECT 0) is there just because I don't need the row number to be based on any explicit order.
       */
       CASE
         WHEN ROW_NUMBER()
                OVER (
                  PARTITION BY cte1.policynumber
                  ORDER BY (SELECT 0)) = 1 THEN premium
         ELSE 0
       END        AS Premium,
       c.yearnum  TransEffYearNum,
       c.monthnum TransEffMonthNum
FROM   cte1
       INNER JOIN cte2
               ON cte1.policynumber = cte2.policynumber
       RIGHT JOIN tblcalendar c
               ON c.yearnum = Year(cte1.policyeffectivedate)
                  AND c.monthnum = Month(cte1.policyeffectivedate)
WHERE  c.yearnum = 2016
       AND classcode <> 58

Answer 1

您应首先排除所有具有您要设置的ClassCode的政策号。而不是 where c.YearNum = 2016 AND ClassCode <> 58

使用

where  PolicyNumber NOT IN
(SELECT  PolicyNumber 
 From cte1 inner join cte2 on cte1.PolicyNumber=cte2.PolicyNumber
 WHERE ClassCode = 58);

那应该这样做。

Answer 2

如果你想要消除政策3的所有行，这可能会有效。

SELECT policynumber,
       classcode,
       /*
       Using ROW_NUMBER() to check if it's the first record in the join and returns the Premium value if so, otherwise it will display 0. 
       The ORDER BY (SELECT 0) is there just because I don't need the row number to be based on any explicit order.
       */
       CASE
         WHEN ROW_NUMBER()
                OVER (
                  PARTITION BY cte1.policynumber
                  ORDER BY (SELECT 0)) = 1 THEN premium
         ELSE 0
       END        AS Premium,
       c.yearnum  TransEffYearNum,
       c.monthnum TransEffMonthNum
FROM   cte1
       INNER JOIN cte2
               ON cte1.policynumber = cte2.policynumber
       RIGHT JOIN tblcalendar c
               ON c.yearnum = Year(cte1.policyeffectivedate)
                  AND c.monthnum = Month(cte1.policyeffectivedate)
WHERE  c.yearnum = 2016
       AND cte2.policynumber NOT IN (SELECT policynumber FROM cte2 WHERE ClassCode = 58 and policynumber IS NOT NULL);

如何排除一个值并使具有该值的所有内容都不在计算中

2 个答案: