Question

我可以使用一些帮助。我有一个查询，使用Case和Like语句计算故障代码的数量，并在日期使用Where子句。然后我将它与辅助查询联合起来。唯一的区别是日期。它可以工作，但返回

中的值

    Fault Code     Count
    20k            71
    60k            167
    20k            86
    60k           178

它返回“计数”列下的辅助计数。但是，我想添加另一列。例如：

    Fault Code    CountA     CountB
    20k           71         86
    60k           167        178

有什么建议吗？我是否创建临时表？

这是我的代码。

    SELECT 
    CASE
    WHEN FaultCode LIKE '60%' THEN '60k'
    WHEN FaultCode LIKE '20%' THEN '20k'
    END AS FaultCode
    , COUNT(FaultCode) AS Day1
    FROM RmaSummary 
    Where CreationTime > '2016-03-30' AND CreationTIme < '2016-03-31' AND
    ClosedTime Is null AND (FaultCode LIKE '60%' OR FaultCode LIKE '20%')
    AND FaultCode <> '20000' AND FaultCode <> '60052' AND FaultCode <> '0'
    GROUP BY 
    CASE 
    WHEN FaultCode LIKE '60%' THEN '60k' 
    WHEN FaultCode LIKE '20%' THEN '20k' 
    END 
    Union All
    SELECT 
    CASE
    WHEN FaultCode LIKE '60%' THEN '60k'
    WHEN FaultCode LIKE '20%' THEN '20k'
    END AS FaultCode
    , COUNT(FaultCode) AS Day2
    FROM RmaSummary 
    Where CreationTime > '2016-03-31' AND CreationTIme < '2016-04-01' AND 
    ClosedTime Is null AND (FaultCode LIKE '60%' OR FaultCode LIKE '20%') 
    AND FaultCode <> '20000' AND FaultCode <> '60052' AND FaultCode <> '0'
    GROUP BY 
    CASE 
    WHEN FaultCode LIKE '60%' THEN '60k' 
    WHEN FaultCode LIKE '20%' THEN '20k' 
    END

Answer 1

使用Conditional Aggregation代替UNION，这样可以获得预期格式的结果。

仅当faultcode在给定日期范围内落下

时，才会对记录进行计数

SELECT CASE 
         WHEN faultcode LIKE '60%' THEN '60k' 
         WHEN faultcode LIKE '20%' THEN '20k' 
       END        AS FaultCode, 
       Count(CASE 
               WHEN creationtime > '2016-03-30' 
                    AND creationtime < '2016-03-31' THEN faultcode 
             END) AS Day1, 
       Count(CASE 
               WHEN creationtime > '2016-03-31' 
                    AND creationtime < '2016-04-01' THEN faultcode 
             END) AS Day2 
FROM   rmasummary 
WHERE  closedtime IS NULL 
       AND ( faultcode LIKE '60%' 
              OR faultcode LIKE '20%' ) 
       AND faultcode <> '20000' 
       AND faultcode <> '60052' 
       AND faultcode <> '0' 
GROUP  BY CASE 
        WHEN faultcode LIKE '60%' THEN '60k' 
        WHEN faultcode LIKE '20%' THEN '20k' 
      END

SQL联合查询计数到不同的列

1 个答案: