[freetds] Question about MAX param size when calling StoredProc

Robert G. Davis rdavis at unico.com
Wed May 21 10:51:14 EDT 2008


SQL 2005 includes varbinary(max) which allows up to 2GB.  Also for
VARCHAR and NVARCHAR.

Rob..

On Tue, 2008-05-20 at 18:12 -0400, James K. Lowden wrote:
> 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.  
> 
> --jkl
> 
> 
> > 
> > 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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