These errors mostly appear because you have a variable with the same name as 
your columns. This is a good reason why you should use some kind of prefix for 
your variables, eg. Hungarian notation like:
Dim szText as String
Dim nNumber as Integer
Dim dToDay As Date
Dim fValue As Float
Dim oLine As Object
...

So try to see if you have a variable with one of these names:
- ovlpperc
- temppop
- proport
- pop

HTH,
Peter Horsb�ll M�ller
GIS Developer
Geographical Information & IT
 
COWI A/S
Odensevej 95
DK-5260 Odense S.
Denmark
 
Tel     +45 6311 4900
Direct  +45 6311 4908
Mob     +45 5156 1045
Fax     +45 6311 4949
E-mail  [EMAIL PROTECTED]
http://www.cowi.dk/gis


-----Original Message-----
From: Neil Gibson [mailto:[EMAIL PROTECTED] 
Sent: Thursday, January 27, 2005 10:44 AM
To: [email protected]
Subject: MI-L Update column statement?


I have three columns in a table, all floats. I want to update the third column 
with the values of the first two using this statement...

update ovlpperc set temppop = proport*pop

This works fine when you use 'update column' in mapinfo, but returns a 'Numeric 
Values Required' error when run in a mapbasic program.  Does anyone know why 
this is, or a way around this?

Thanks

Neil


      - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
MICROVISION: VOTED NEW DIRECT UK/INTERNATIONAL PRODUCT OF THE YEAR 2004

                       IDMF DM Business Awards
      - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - 
_________________________________________
This e-mail has been scanned for all viruses by Star Internet. The service is 
powered by MessageLabs. For more information on a proactive anti-virus service 
working around the clock, around the globe, visit: http://www.star.net.uk 
________________________________________________________________________

---------------------------------------------------------------------
List hosting provided by Directions Magazine | www.directionsmag.com | To 
unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Message number: 15014



---------------------------------------------------------------------
List hosting provided by Directions Magazine | www.directionsmag.com |
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Message number: 15015

Reply via email to