FreeTDS Development Group

["Lowden, James K" <LowdenJK AT bernstein.com>]

> From: Frediano Ziglio [mailto:freddyz77 AT tin.it]
> Sent: October 23, 2002 2:48 PM
> 
> It seem that some library (all?) pad SYBCHAR with
> spaces until the length so 'xyz' became 'xyz   ' converted to CHAR(6).
> ODBC act in such way, other, I don't know/remeber. I think 
> best solution
> (if all library use padding) is padding in token.c, after reading from
> wire and fixing column_cur_size.

I don't know what happens on the wire, but I do know that char columns are
blank-padded and varchar are not.  In db-lib, the behavior is controlled by
dbbind().  

Consider:

1> create table #a( c char(3), v varchar(3) )
2> insert #a values ('c', 'v')
3> select *, c+v, v+c from #a
4> go
(1 row affected)
 c   v
 --- --- ------ ------
 c   v   c  v   vc

That's what db-lib would give you, too, if you used CHARBIND.  Isn't that
how it's transmitted, too?  

--jkl


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