Let me get this right:
Select Wells.Owner, Wells.Owner_Abbr, Wells.Owner_Well_No, YearField_str
from Wells, Production
where Wells.Primary_Key = Production.Primary_Key
and YearField_str > 0 into Selection
---
Try this query:
Select W.Primary_Key, W.Owner, W.Owner_Abbr, W.Owner_Well_No,
P.YearField_str
from Wells W, Production P
where W.Primary_Key = P.Primary_Key
and P.YearField_str > 0
---
You didn't specify the table for the YearField_Str so I assumed that you're
referring to Production table. If you had SpatialWare/Informix installed
with MapInfo, then it would be much easier.
Good luck!
--
Erick Posner
Join AllAdvantage! Earn $ while you surf anywhere on the Web
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----- Original Message -----
From: Tim Warman <[EMAIL PROTECTED]>
To: Mapinfo-L <[EMAIL PROTECTED]>
Sent: Tuesday, May 02, 2000 9:45 AM
Subject: MI MB using a variable in a select statement
Listers,
Is it possible to use a string variable in a select statement?
The following bit of code doesn't seem to work:
Select Wells.Owner, Wells.Owner_Abbr, Wells.Owner_Well_No, YearField_str
from Wells, Production where
Wells.Primary_Key=Production.Primary_Key and YearField_str>0 into Selection
The YearField_str value has the form Production._19xx, with the actual year
value obtained from a dialog box where the user types in the year they want
to query.
TIA
_____________________________
Tim Warman
Geologist & GIS Specialist
Richard C. Slade & Associates
North Hollywood, CA
(818) 506-0418
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