Get next id

Question

Hi there,
When inserting a new record I want to assign the next
property_id from the property.property_id table. The query:
<cfquery name="GetNewID"
datasource="#application.DSN_Name#">
SELECT top 1 property_id
FROM property
ORDER BY property_id desc
</cfquery>
When I test it works swell.
However the error appears on the following line of code:
<cflocation
url="add_property_confirm.cfm?property_id=#GetNewID.property_id#">
The error states that property_id is not defined in GetNewID.
The property_id table is set for auto number and ident and
using SQL 2000.
I have no clue where to start to troubleshoot this - as an
interesting quirk this code was working for years, the client
pulled the site down, then we reinstated it - nothing changed in
the database or the code....a mystery to me.
Thanks in advance,
Kathy

Answer 1

Try changing this
<cfquery name="GetNewID"
datasource="#application.DSN_Name#">
SELECT top 1 property_id
FROM property
ORDER BY property_id desc
</cfquery>
to this
<cfquery name="GetNewID"
datasource="#application.DSN_Name#">
SELECT max(property_id) property_id
FROM property
</cfquery>
Also, for this code
<cflocation
url="add_property_confirm.cfm?property_id=#GetNewID.property_id#">
make sure there is no whitespace.