Question

我正在运行一个查询，该查询在查询中搜索特定列的不为空的实例，然后按月将其分解。这工作正常，但我还需要添加一个子查询，该子查询连接另一个表并查找其中的另一个列的实例。这是查询：

SELECT DATEPART(MONTH, CreatedDate) AS TheMonth, COUNT(CreatedDate) AS NASCL, COUNT(SQL_Date) AS NASQL, COUNT(Demo_Completed_Date) AS NADEMO, COUNT(Converted_Date) AS NAOPP, (SELECT COUNT(lead_load.Converted_OpportunityId) FROM lead_load INNER JOIN Opportunity_load ON lead_load.Converted_OpportunityId = Opportunity_load.Id WHERE Opportunity_load.Stage_Name = 'Closed Won') AS NACONV FROM lead_load WHERE Region='North America' AND LeadSource NOT IN ('Advertising', 'Trade Show', 'Social', 'Partner', 'Organic Search', 'Paid Search', 'Direct', 'Referral') AND CreatedDate > '2014-07-16' GROUP BY DATEPART(MONTH, CreatedDate);

问题是，如果我尝试将DATEPART放入子查询中，则会出错，因为我没有对其进行分组或通过它进行聚合，结果只汇总了Opportuunity_load.Id的所有实例{}始终{1}}。

我如何进行下一步并逐月解决这个问题，因为我有其他人？

提前致谢。

Answer 1

尝试此操作，将子查询移动到另一个嵌套查询中：

SELECT * 
    ,(SELECT
        COUNT(lead_load.Converted_OpportunityId)
        FROM lead_load
        INNER JOIN Opportunity_load
        ON lead_load.Converted_OpportunityId = Opportunity_load.Id
        WHERE Opportunity_load.Stage_Name = 'Closed Won') AS NACONV
FROM (
  SELECT
    DATEPART(MONTH, CreatedDate) AS TheMonth,
    COUNT(CreatedDate) AS NASCL,
    COUNT(SQL_Date) AS NASQL,
    COUNT(Demo_Completed_Date) AS NADEMO,
    COUNT(Converted_Date) AS NAOPP,
  FROM lead_load
  WHERE Region='North America'
    AND LeadSource NOT IN ('Advertising', 'Trade Show', 'Social', 'Partner', 'Organic Search', 'Paid Search', 'Direct', 'Referral')
    AND CreatedDate > '2014-07-16'
  GROUP BY DATEPART(MONTH, CreatedDate)
) tmp;

子查询中的Datepart

1 个答案: