>Thanks Norm, Ed and John,
>
>The returned value is uniform (I am converting something like 8-184-33 into
>08018400033) so I don't think that is the problem.
>
>What I had to do is to format in a latter step. In some cases I like using UDFs in SELECTs because the code reads neater.
>
>But the malfunction of TRIM surprised me!

Why? Surely you realize that in FoxPro, fields are of a uniform length, and TRIM() is not, so it had to either truncate some values or pad others to make the field length in the output of the SELECT fixed length...

>
>Thanks again.
>
>Alex
>
>
>>Hola Alejandro ---
>>
>>Point One: Try to avoid using UDF's in SELECT statements.
>>Point Two: TRIM? Output len from the function should/must be uniform.
>>
>>
>>>
>>>While using FP DOS I call a UDF from a SQL SELECT. I was surprised to find out that TRIM() does not work seem to work within the function! The code is this:
>>>
>>>SELECT FormatData(cX) AS cX FROM xx INTO CURSOR Y
>>>
>>>FUNCTION FormatData
>>>PARAMETER tcData
>>>lcNewData = ...
>>>RETURN lcNewData
>>>
>>>
>>>After getting funny results I paused within the function and
>>>tested through the DEBUG window that TRIM("aa ")+"." is not
>>>"aa." Does anybody know why? Have I gone through the looking glass?
>>>
>>>TIA,
>>>
>>>Alex