Question

我需要能够根据此示例表检索每个区域和频道的连续失败次数：

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                  <h1 class="heading">SHRUTI NAIR</h1>
                  <span>Hybrid Mobile App developer</span>
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每次收到False，计数器都会重置。使用这个存储过程，我能够显示每个区域的连续失败次数，失败的通道1，但我无法弄清楚如何在结果中包含fail2。

id   reportdate             region  channel fail1   fail2
1   2017-05-22 00:00:00.000 canada  A   True    False
3   2017-05-23 00:00:00.000 canada  A   True    False
4   2017-05-24 00:00:00.000 canada  A   False   True
5   2017-05-25 00:00:00.000 canada  A   True    True
6   2017-05-25 00:00:00.000 canada  B   True    True

我当前的结果集是这个，我需要它来显示两种类型的错误计数：

BEGIN
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT ON;

    -- Insert statements for procedure here
SELECT
    region, channel, MAX(reportDate),
    COUNT(*) AS consecutive_errors
FROM
    dfc_test t1
WHERE
    NOT EXISTS
    (
        SELECT * FROM dfc_test t2
        WHERE t2.region = t1.region
        AND t2.channel = t1.channel
        AND t2.reportDate >= t1.reportDate
        AND t2.fail1 = 0

    )
GROUP BY
    region, channel
HAVING
    MAX(reportDate) = MAX(CASE WHEN fail1 = 1 THEN reportDate END)

需要结果如下：

region  channel (No column name)    consecutive_errors
canada  A   2017-05-25 00:00:00.000 1
canada  B   2017-05-25 00:00:00.000 1

SQL Server显示连续失败的计数

0 个答案: