Sql 总和（IIF）（包括计数为0的结果

嘿，我正在使用sum iff返回基于多个条件的计数

我基本上是在每个站点上运行一个关于接收到的呼叫的报告，但是我需要结果集中包含0个呼叫的站点，如果它们在该周没有呼叫，则其值为0甚至为Null

唯一的问题是我的where cluase只包含了一周内有电话的网站

任何想法

代码：

您需要一个sitedetails的正确加入，以便获得所有站点，即使是没有调用的站点

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您可能需要单独执行查询的前半部分，然后在主查询中使用该查询。

请包括您尝试查询的内容。我已使用上述代码更新了帖子。

create a new query - qryCallStatus:

SELECT DISTINCT zone, description
FROM Callstatus, reportMonth
WHERE
Callstatus.date_loaded BETWEEN reportMonth.reportdate AND reportMonth.priorweek;

Then change your output query to:

SELECT 
 d.sitename,
 count(c.Chargeablecalls) AS All_Calls,
 SUM(IIf(c.ChargeableCalls Like "Chargeable",1,0)) AS Chargeable_calls,
 d.sitetype
FROM
    (sitedetails AS d LEFT JOIN qryCallStatus AS s ON d.zone=s.zone)             
LEFT JOIN statusconversion AS c ON s.description=c.reportheading
GROUP BY d.sitename, d.sitetype;

create a new query - qryCallStatus:

SELECT DISTINCT zone, description
FROM Callstatus, reportMonth
WHERE
Callstatus.date_loaded BETWEEN reportMonth.reportdate AND reportMonth.priorweek;

Then change your output query to:

SELECT 
 d.sitename,
 count(c.Chargeablecalls) AS All_Calls,
 SUM(IIf(c.ChargeableCalls Like "Chargeable",1,0)) AS Chargeable_calls,
 d.sitetype
FROM
    (sitedetails AS d LEFT JOIN qryCallStatus AS s ON d.zone=s.zone)             
LEFT JOIN statusconversion AS c ON s.description=c.reportheading
GROUP BY d.sitename, d.sitetype;