cfquery cachedwithin issue

Hi All,

I am facing an issue with the cachedwithin attribute of cfquery. Currently I am using a query like below in cffunction defined within a cfcomponent

<cfcomponent name="courses>

  <cffunction name="getRecords" access="public" .....>

       <cfquery name="getAllRecords" datasource="msee" cachedWithin="#createTimeSpan(0,2,0,0)#">

        select * from students     

      </cfquery>
   
      <cfreturn getAllRecords>
  </cffunction>

<cffunction name = "add" .....>

           insert logic
</cffunction> 
 
</component>

Then I am invoking this component on a page which has two includes and other business logic.

index.cfm

<cfset o_student = createObject("component", "courses")>

<cfset q_student = o_student.getRecords()>

I have two include files. One include files lists all the students (which loops over q_student variable), and other include file has a data entry form which adds a new student.

So when I add a new student, I am reusing the query defined in the component above as follows:

<cfif action is "add">

      <cfquery name="getAllRecords" datasource="msee" cachedWithin="#createTimeSpan(0,0,0,-1)#">

        select * from students     

      </cfquery>

      <cfset addStudent = o_student.add(......)>

</cfif>

And once the add function is performed and the page is refreshed, I do not see any updated records of the students, the debug info shows two queries with the same number of records and one query is a cached query,

Can anyone suggest if what I am doing is right? If its not, what are the other ways to update the cache...I do not want to use <cfobjectcache>, I just want to refresh only one query.

Thanks.