Question

我正在尝试使用查询查询创建图表，但无论我尝试什么，都会收到500错误。我最终确定了cfchart标签作为问题，但无法在其中找到任何语法错误，也没有任何逻辑错误。

<cfquery name="getData" datasource="#dsn#">
   SELECT 
          ( SELECT Count(UserID) 
            FROM   Users 
            WHERE  StripeCustomerID IS NOT NULL
          ) AS 'Licenses'
          , COUNT(UserID) AS 'Registrations'
          , UserID AS 'User'
  FROM  Users
  WHERE DATEDIFF(hour, FirstContact, DateStamp) <= '12'
  GROUP BY UserID
</cfquery>

<cfquery name="queryOfQuery" dbtype="query">
   SELECT (Licenses/Registrations) AS Percent FROM getData
</cfquery>


<cfchart format="flash"> 
     <cfchartseries type="bar"
        query="queryOfQuery"
        itemcolumn="UserID"
        valuecolumn="Percent"  />
</cfchart>

示例数据

Users Table Sample Data
UserID    StripeCustomerID
35         cus_8LOSlmvEQcfg1g
36         cus_6ixCBe7aU1MJEt
50         NULL
60         cus_6ifLCNmR9rOBCl
69         NULL
70         NULL
72         NULL
73         NULL
74         NULL

Answer 1

您的语法问题是

SELECT (Licenses/Registrations) AS Percent FROM getData

百分比是一个保留的关键字，因此您需要添加括号或单引号，以便SQL引擎知道您使用保留关键字作为列别名。

SELECT (Licenses/Registrations) AS [Percent] FROM getData

OR

SELECT (Licenses/Registrations) AS 'Percent' FROM getData

您可以轻松地将百分比列添加到原始数据集中。

SELECT 
    (SELECT Count(UserID) FROM Users WHERE StripeCustomerID IS NOT NULL)     AS     Licenses, 
    COUNT(UserID) AS Registrations,
    (SELECT Count(UserID) FROM Users WHERE StripeCustomerID IS NOT NULL) / COUNT(UserID) AS [Percent],
    UserID AS User
FROM Users
WHERE DATEDIFF(hour, FirstContact, DateStamp) <= '12'
GROUP BY UserID

另外，我很好奇你想要的许可证。您是否想要获得所有DISTINCT UserId的{{1}} count或count。其余的查询表明non null UserIds在Users表中重复出现（我觉得很奇怪）......所以USerId 5可能存在2或3次，所以计算不同会给你1 userid 5虽然没有添加distinct但会给你2或3 ...

UserId总是registrations吗？如果是这样，则1是唯一的，您根本不需要在主查询中使用您的聚合。而Percent的答案将始终与1 /＃许可证相同.......

根据您的评论，这似乎是您想要的查询。

UserId

CFChart产生500错误

1 个答案: