Question : Searching for multiple values

I have a search form that basically has individual values that the end user can select that will search the database for those individual values; however, I need to add a search type that has multiple values. I'm not sure how to do this type of search.

For example, I have a record with a bunch of values and one of the items is location. Each record could have been assigned multiple locations.
ID Data1 Data2 Data3 Data4 Location Name from other table
Record1 Data1 Data2 Data3 Data4 Orlando
Dallas
Record2 Data1 Data2 Data3 Data4 Orlando
Record3 Data1 Data2 Data3 Data4 Harrisburg
Dallas

Now the location data is in a separate table...so that table looks like this:
strLocationCode LocationName
Record1 Orlando
Record1 Dallas
Record2 Orlando
Record3 Harrisburg
Record3 Dallas

         
           
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          <cfform name="Search" action="search.cfm?reportID=1" format="flash" skin="haloblue" width="300" height="500" timeout="500">
<cfinput type="Text"
     name="ID" 
     label="ID Number:">
<cfselect NAME="Location"
	query="get_LocationList"
	display="LocationName"
	value="strLocationCode"
	multiple="yes"
	size="11"
         width="233" 
	label="Affected Location(s):"
</cfselect>
</cfform>

<!--- the query to get the results from the search form --->
<CFQUERY datasource="myDNS" name="getmySearchResults">
SELECT    BLAH BLAH BLAH
FROM      BLAH BLAH BLAH
WHERE    ID = ID 
	<CFIF Len(Trim(form.ID))>
	         AND ID LIKE <CFQUERYPARAM CFSQLTYPE="CF_SQL_VARCHAR" VALUE="#form.ID#">
	</CFIF>
<!--- HOW DO I WRITE THE WHERE STATEMENT IN ORDER TO GET THE RECORDS BASED ON THE LOCATION OR LOCATIONS THE END USER SELECTED ON THE FORM??? --->
	<CFIF Len(Trim(form.Location))>
	         AND ??????????????????????????????
	</CFIF>
</CFQUERY>

           
         

Answer : Searching for multiple values

I'm not sure about the structure of the search table either. But if each location is stored as a separate record, I'd use a simple JOIN and IN (...) clause. It's not clear whether it should be an INNER or OUTER join, but ...

<cfparam name="FORM.Location" default="">

<cfquery....>
SELECT Columns
FROM SearchTableName sr INNER JOIN LocationTableName loc ON
sr.LocationName = loc.LocationName
WHERE ID = ID
.....
<cfif listLen(form.location)>
AND loc.strLocationCode IN
(
<cfqueryparam value="#form.location#" list="true" cfsqltype="(your data type)">
)
</cfif>

If the locations ARE are stored as comma delimited list (less than ideal), then you'd probably have to resort to looping and the old LIKE hack