Finding numbers in recordset.

Question

Easy one for the experienced guys:
I have a record with a list of comma separated values, IE,
1,2,4,6,12,24
or simply
24
I need to write a query where I find all records where the
specific number/value I'm looking for is in the list. For example
I’m looking for all records that contains the number "2".
I've used the like operator
select * from my_table where my_column like
'%#form.my_search#%'
(and a few variants), but the problem is, it finds the record
with just "24" in it as well, whereas I want records that contains
"2". And not anything that has a 2 in front or behind it.
All numbers are integers, as they refer to a row identifier
on another table.
How to do this?
Thanks

Answer 1

Though I agree with comments here about normalizing
databases, if you are stuck with this, here is a solution. A query
of a query. Converts your 1,2,3,4,5,6 to '1','2','3','4','5','6'
which can then be used with the SQL operator IN.
<!--- Make sure your search parameter is surrounded by
single quotes, then surrounded by double quotes --->
<cfset Form.search = "'2'">
<cfquery name="q1" datasource="yourDatasource">
select * , '''' + REPLACE(csv_data,',',''',''') + '''' as
mod_data,
'#Form.search#' as search_parm
from test
</cfquery>
<cfquery dbtype="query" name="q2">
select * from q1
where search_parm IN (mod_data)
</cfquery>
<cfoutput query="q2">
#anyColumnYouSelectedInQuery1or2#<br>
</cfoutput>