FreeTDS Development Group

[Chad Johnson <chadjamesjohnson AT gmail.com>]

On Tue, Mar 17, 2009 at 7:59 PM, Chad Johnson
<chadjamesjohnson AT gmail.com> wrote:
> I think you got the gist of it!  To summarize:  Queries are getting
> re-prepared between executes when the size of the bound strings
> increases.  To work around this the DBD::ODBC authors set a minimum
> size of 80 on bound varchar data.  Additional logic exists in
> DBD::ODBC to keep track of the minimum size in between executes.
>
> From your previous comment it sounds like a better solution would be
> to call SQLSetStmtAttr() instead.  I'll give that a shot.  Thanks!
>
> -Chad J
>

I perused the ODBC docs at :

http://msdn.microsoft.com/en-us/library/ms712631(VS.85).aspx

And the correct `Attribute` to pass into SQLSetStmtAttr is not jumping
out at me to increase the size of the buffer for one parameter.  I
make no claims to being an ODBC guru, but, from what I can discern
these `Attributes` effect the entire statement (as the name of the
function would imply) as opposed to just one parameter on the
statement.  Am I missing something obvious?

Thanks!
Chad J