I am writing trying to access data in an Access database via a Delphi 7 program.  I have a DSN setup using the Microsoft Access driver which i am using to connect to the Access database.

I am attempting to use a query like the following and it keeps giving me read access errors.  It has to do with the case statement (i have tried rewriting it etc.) because if i take it out it works fine.  Any ideas

select *, case when codamount > 100 then 'high' else 'low' end  as CODTYPE from UPS_MAIN_EXPORT_COPY_TBL where SalesOrderNo = user input

Quote:

case when codamount > 100 then 'high' else 'low' end

Not completely certain, but while this will work with T-SQL, it may not be Jet SQL compliant. You may want to take a look in Access help, and see if you can code an Immediate If (IIf) statement.

"Don't be irreplaceable. If you can't be replaced, you can't be promoted."
 

I tried using iif and it still gives me an access violation when i try to run the query in Delphi.

According to this:

http://support.microsoft.com/kb/321266

Neither the if(f) nor the case statements are valid. Does anyone know how to achieve the same goal using only these keywords?  

Thanks in advance.

Haha, i'm a doofus.  I had IFF in my brain for if and only if and kept using that instead of iif.  

Also, because i was using version 12 of the Microsoft Access Driver, i don't think the BDE was able to interpret the error messages correctly so it was just giving me read access violations instead of useful info.

Thanks for the help.

Works fine for me in Access.  

"Don't be irreplaceable. If you can't be replaced, you can't be promoted."