Query Of Queries : Error When Trying To Fake Left Outer Join

Question

Hi there
I am trying to replicate a left outer join, combining two query of queries using a method I located here
However, I keep getting an error message..
Here is the code I am using....
    <cfquery dbtype="query" name="qry">
                SELECT *
                FROM returnQry, returnQry2
                WHERE returnQry.mediumImage = returnQry2.mediumImage
                ORDER BY returnQry.name   
            </cfquery>
            <cfquery name="returnQry3" dbtype="#application.mx#">
                SELECT *
                FROM trackmeanings AS t
            </cfquery>      
           <cfquery dbtype="query" name="endQry">
                SELECT name,nameRcd,mediumImage, COUNT(sMessage) AS comments
                FROM qry, returnQry3
                WHERE qry.name = returnQry3.sNameTrack
                UNION
                SELECT name,nameRcd,mediumImage, COUNT(sMessage) AS comments
                FROM qry, returnQry3
                WHERE #qry.name# NOT IN (#QuotedValueList(returnQry3.sNameTrack)#)
                GROUP BY name,nameRcd,mediumImage
            </cfquery>
When I try to use the query output in a page, i get the error message "Incorrect conditional expression,  Expected one of [like|null|between|in|comparison] condition"
Would anyone have any ideas?
Many thanks

Answer 1

Actually , spoke a little too soon, my query now seems to be outputting duplicates when the value is found on both sides of the union, my group by clause doesnt seem to be eliminating them like it usually does.
My SELECT code now reads
<cfquery dbtype="query" name="endQry">
SELECT name,nameRcd,mediumImage, COUNT(sMessage) AS comments
FROM qry, returnQry3
WHERE qry.name = returnQry3.sNameTrack
GROUP BY name,nameRcd,mediumImage
UNION
SELECT name,nameRcd,mediumImage, 0 AS comments
FROM qry
WHERE qry.name NOT IN (<cfqueryparam
value="#returnQry3.sNameTrack#"
cfsqltype="cf_sql_varchar"
list="yes"
/>)
GROUP BY name,nameRcd,mediumImage
ORDER BY name DESC
</cfquery>
and my ouput...is producing duplicates
<cfoutput query="rc.qryTopTracks" group="name">
#rc.qryTopTracks.name#
</cfoutput>
Would you have any idea of how to eliminate them here?  Thanks