Question

我正在运行以下两个陈述：

首先是A）它做了它需要做和工作的事情：

SELECT
  itemColumn
 ,valueColumn
 ,label
 FROM
 rstCombinedChartData

 UNION ALL

 SELECT
 itemColumn
 ,CAST(valueColumn AS INTEGER) AS valueColumn
 ,label
 FROM
 rstChartData

这给了我以下结果：

enter image description here

接下来我需要获取这些结果，并在这种情况下返回每个值的itemcolumn总数是和否

i.e.
Yes 200
No 400

B）这是我实现此目的的查询：

SELECT
itemColumn
,SUM(valueColumn) AS valueColumn
,label
FROM
rstCombinedChartData (this is above result set)
GROUP BY
label
,itemColumn
ORDER BY
label DESC
,itemColumn DESC

但是，我得到以下不正确的结果：

enter image description here

这里有什么问题，查询B应该是yes = x和no = x，而是我得到了错误和所有总数？

CF功能：

    <cffunction name="getAverageChartData" hint="I return the data required to render an average chart." returntype="array" output="false">
        <cfargument name="surveyList" hint="I am a record set of Surveys." required="true" type="query" />
        <cfargument name="filter" hint="I am the optional filter which is to be applied to all results." required="false" default="" type="string" />

        <cfset var local=structNew() />

        <cfset var rstChartData="" />
        <cfset var rstChartDataTotal="" />
        <cfset var rstCombinedChartData=queryNew("itemColumn,valueColumn,label","varchar,integer,varchar") />

        <cfset local.objQuestion=objQuestionService.get(arguments.surveyList.question_ID[1]) />
        <cfset local.intQuestionTypeID = local.objQuestion.getTypeID() />

        <cfset local.strSubQuestionList=local.objQuestion.getAnswer() />
        <cfset local.strPossibleAnswerList=local.objQuestion.getPossibleAnswer() />

        <cfset local.arrChartDataResult=arrayNew(1) />

<!--- loop over each school's survey --->
        <cfloop query="arguments.surveyList">
            <cfset local.arrChartData = getChartData(arguments.surveyList.survey_id, arguments.surveyList.question_id, arguments.filter) />

<!--- loop over each sub question and append (union) it to a running total --->
            <cfloop array="#local.arrChartData#" index="rstChartData">
                <cfquery name="rstCombinedChartData" dbtype="query">
                    SELECT
                         itemColumn
                        ,valueColumn
                        ,label
                    FROM
                        rstCombinedChartData

                    UNION ALL

                    SELECT
                         itemColumn
                        ,CAST(valueColumn AS INTEGER) AS valueColumn
                        ,label
                    FROM
                        rstChartData
                </cfquery>
            </cfloop>
        </cfloop>


<!--- get the totals for each itemColumn --->
            <cfquery name="rstChartDataTotal" dbtype="query">
                SELECT
                     itemColumn
                    ,SUM(valueColumn) AS valueColumn
                    ,label
                FROM
                    rstCombinedChartData
                GROUP BY
                     label
                    ,itemColumn
                ORDER BY
                     label DESC
                    ,itemColumn DESC
            </cfquery>

确定 - 重大更新

我不知道为什么，但我错误地添加了这一行：

<cfset querySetCell(rstCombinedChartData, "itemColumn", "1") />

突然间，查询开始在Railo中运行！好了，我有一个额外的结果，没有意义“1”但WTF！似乎Railo并不喜欢所有的肯定，没有任何答案我把其他东西放入混合物中，并且它开始正确地再次正确地应对它们。

有谁知道这里发生了什么？我已经厌倦了在sql中作为varchar进行转换，但是这不仅仅在CF级别上有效。

enter image description here

如果我拿出这条线：

<cfset querySetCell(rstCombinedChartData, "itemColumn", "1") />

它可以追溯到：

enter image description here

Answer 1

来自评论 - 我很好奇为什么当valueColumn已经是一个整数时，你必须将CAST(valueColumn AS INTEGER) AS valueColumn作为行itemColumn中的一个整数？

您应该尝试在同一个SQL语句中将CAST(itemColumn AS CHAR) AS itemColumn转换为char。注意：在MySQL中，您无法转换为VARCHAR。在MySQL中，您必须使用CHAR。类似于<cftry> <cfset rstCombinedChartData = QueryNew("itemColumn,valueColumn,label","varchar,integer,varchar") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "Yes") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 33) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "No") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 45) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "Yes") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 0) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "No") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 0) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "Yes") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 72) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "No") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 66) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "Yes") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 0) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "No") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 0) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "Yes") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 42) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "No") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 38) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "Yes") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 64) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "No") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 83) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "Yes") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 0) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "No") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 0) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "Yes") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 65) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "No") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 43) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "Yes") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 0) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfset temp = QueryAddRow(rstCombinedChartData) /> <cfset temp = QuerySetCell(rstCombinedChartData, "itemColumn", "No") /> <cfset temp = QuerySetCell(rstCombinedChartData, "valueColumn", 0) /> <cfset temp = QuerySetCell(rstCombinedChartData, "label", "") /> <cfquery name="rstChartDataTotal" dbtype="query"> SELECT itemColumn ,SUM(valueColumn) AS valueColumn ,label FROM rstCombinedChartData GROUP BY label ,itemColumn ORDER BY label DESC ,itemColumn DESC </cfquery> <html> <head><title>Test</title></head> <body> <h3>Test</h3> <div> <cfoutput query="rstChartDataTotal"> <p>#rstChartDataTotal.itemColumn# - #rstChartDataTotal.valueColumn#</p> </cfoutput> <cfdump var="#rstCombinedChartData#" label="rstCombinedChartData" /> <hr /> <cfdump var="#rstChartDataTotal#" label="rstChartDataTotal" /> </div> </body> </html> <cfcatch type="any"> <cfdump var="#cfcatch#" /> </cfcatch> </cftry>。

其余部分并非真正答案，但评论时间太长

我根据您共享的数据创建了一个自包含的repro，但我无法让它失败。您的查询在ACF和Railo中对我正常工作。复制下面的代码并将其粘贴到cflive.net。

cfdump

您可以在rstChartDataTotal itemColumn结果中看到，Railo将itemColumn维护为varchar，仍显示“是”或“否”。

Railo dump

在Adobe ColdFusion中，它将{{1}}更改为布尔值，并显示为“true”或“false”。

ACF dump

我认为异常只来自cflive.net生成的输出，但在这两种情况下，查询仍会运行并正确计算两列的结果？

Answer 2

这可能是范围/参考问题;

变化：

<cfquery name="rstCombinedChartData" dbtype="query">

向

<cfquery name="local.q" dbtype="query">

然后在QoQ之后，在local.arrChartData循环结束时，将其设置回rstCombinedChartData变量;

        <cfloop array="#local.arrChartData#" index="rstChartData">
            <cfquery name="local.q" dbtype="query">
                SELECT
                     itemColumn
                    ,valueColumn
                    ,label
                FROM
                    rstCombinedChartData

                UNION ALL

                SELECT
                     itemColumn
                    ,CAST(valueColumn AS INTEGER) AS valueColumn
                    ,label
                FROM
                    rstChartData
            </cfquery>
            <cfset rstCombinedChartData = local.q />
        </cfloop>
    </cfloop>

这应确保正确设置所有指针/引用。

Answer 3

尝试此查询 -

SELECT UNIQUE itemColumn
      , SUM( SELECT valueColumn 
             FROM   rstCombinedChartData 
             WHERE itemColumn = "yes") as YES
      , SUM ( SELECT valueColumn 
             FROM   rstCombinedChartData 
             WHERE  itemColumn = "no") as NO
      , label;

Railo Query of Query返回错误的结果

3 个答案: