Hi all,
I'm wondering if someone can explain to me how to properly utilize Query of
Queries (QoQ) to gain the maximum amount of performance.
Here's a code example..
<cfquery datasource="test" name="Query">
Select ID, name
From TempTable
</cfquery>
<cfset start = GetTickCount()>
<cfloop from="1" to="1000" index="i"
<cfquery dbtype="query" name="QoQ">
Select ID, Name
From Query
Where id = #i#
</cfquery>
</cfloop>
<cfset end = GetTickCount()>
<cfset final = end - start>
QoQ result -<cfoutput>#final#</cfoutput><br>
<cfset start = GetTickCount()>
<cfloop from="1" to="1000" index="i"
<cfquery datasource="test" name="QoQ">
Select ID, Name
From TempTable
Where id = #i#
</cfquery>
</cfloop>
<cfset end = GetTickCount()>
<cfset final = end - start>
Regular - <cfoutput>#final#</cfoutput>
When I run this I'm getting QoQ times 200-250% greater than the Regular query.
I ran this on two machines, with similar results.
Both machines were running CFMX 6.1 & MS-SQL 2000.
I was under the impression that QoQ's were supposed to have better performance
than regular queries. I am doing something wrong?
--j
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