Re: Connections/Statements/ResultSets (Was: Re: Pooling

From: Dave Cramer <Dave(at)micro-automation(dot)net>
To: Michael Paesold <mpaesold(at)gmx(dot)at>
Cc: Curt Sampson <cjs(at)cynic(dot)net>, "pgsql-jdbc(at)postgresql(dot)org" <pgsql-jdbc(at)postgresql(dot)org>
Subject: Re: Connections/Statements/ResultSets (Was: Re: Pooling
Date: 2002-08-30 09:50:15
Message-ID: 1030701016.12890.424.camel@inspiron.cramers
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The spec probably doesn't say anything but; with the way pg's driver is
currently written you can have as many resultsets/statements open as you
want. This is because the driver will read them all in when you do an
executeXXX. There is a plan however to move to a cursor backed result
set which will change the above statement. This is because a cursor must
be executed within a transaction, and you can only have one transaction
open per resultset. I suppose it's possible to still open a non-cursor
based resultset while the transaction is open?

Dave

On Fri, 2002-08-30 at 04:34, Michael Paesold wrote:
> Curt Sampson wrote:
>
> > On Thu, 29 Aug 2002, Michael Paesold wrote:
> >
> > > So it's not 1 connection -> 1 resultset at a time, but 1 statement -> 1
> > > resultset at a time.
> >
> > Sorry, but there are many JDBC drivers out there that allow only
> > one resultset on a connection at a time. You may get more than one
> > per connection with some drivers, but that's not portable.
> >
> > cjs
>
>
> Does anyone of you know exactly, what the JDBC specification says about
> more than one result set per connection at a time?
>
> If not, can you give me a URL where I can have a look at the specs myself?
>
> Michael
>
>
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