[freetds] Question about MAX param size when calling StoredProc

James K. Lowden jklowden at freetds.org
Tue May 20 18:12:31 EDT 2008

Navdeep Shergill wrote:
> so does that mean that using FreeTDS I can only send a max 8k param
> lenght for Varbinary?

Cf. http://msdn.microsoft.com/en-us/library/aa258271(SQL.80).aspx

BINARY and VARBINARY types are restricted to 8000 bytes.  I am pleased to
hear VARBINARY works as expected.  

Microsoft SQL Server 2000 allows stored procedures to define parameters of
type TEXT or IMAGE.  I'd expect them to work with FreeTDS nowadays, but
the src/dblib/rpc.c unit test, for instance, doesn't use those types.  If
you try them, I'd be interested to hear back, either way.  


> On Tue, May 20, 2008 at 5:22 AM, James K. Lowden <jklowden at freetds.org>
> wrote:
> > Navdeep Shergill wrote:
> > > I am trying to call to call a
> > > storedProc on a SQL2005 server that takes in a 'varbinary' field as
> > > input paramter. The varbinary field is set up with '-1' as the
> > > Length in the database.
> >
> > varbinary is the weirdest datatype in the library, perhaps on the
> > planet. I have found places where Microsoft claims to use it, but in
> > fact doesn't.
> >
> >
> > Can I ask why you're using it?  Would TEXT/BINARY do just as well?

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