FreeTDS Development Group

["Fernando" <nulll AT bol.com.br>]

> > > On Sat, 6 Apr 2002 20:39:47 -0500 "Fernando" <nulll AT bol.com.br> wrote:
> > > > 
> > > >    If I submit a statment(select) that return 100.000 lines, I can
> > > >    fetch group of lines or I have wait by all lines ?
> > > 
> > > The server listens to your query and composes a result set.  If the
> > > result set is not sorted (no ORDER BY), the server will start
> > > returning rows as soon as it finds some that meet your criteria.  If
> > > the result set *is* sorted, the server has to wait until it finds all
> > > your rows, then sort them, then send you the rows.  Frequently,
> > > sorting leads to waiting.  
> > > 
> > > Does that answer your question?
> 
> On Sat, 6 Apr 2002 23:39:20 -0500 "Fernando" <nulll AT bol.com.br> wrote:
> >
> >    More or less. The result set can are in server and I fetch a group of
> > lines by time until end ? Can I send to my client application lines of
> > result set by solicitation hers ?
> >    I want that part of result set stay on server until my client
> > application need more a group of lines.
> > 
> > Is this possible ? 
> 
> Fernando, 
> 
> You're talking about the TDS protocol itself, yes?  Not dblib, ctlib, or
> ODBC?  AFAIK, TDS never buffers a row.  A result set row is on the server
> until you fetch it.  When you fetch it, it leaves the server and comes to
> the client.  
> 
> My answer assumes you want to fetch the rows in order, 1..N.  If you want
> to skip rows or read them out of order, things get more interesting.  
> 
> HTH.
> 
> --jkl

Hello,

    I'm talking about TDS, pure TDS. When I send a statment(0x01) to
server immediately I beginning to receive all lines sequentially until the
end. The ser don't wait by my fetch, it send me all lines.
    I want know if I can send a statment that return 100.000 lines and
while I fetch any lines by time I can send outher satament and process
both  simultaneously. Can I do this ?



Regards!