Re: quick question about PreparedStatements
От | Felipe Schnack |
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Тема | Re: quick question about PreparedStatements |
Дата | |
Msg-id | 20030807150116.166c4a93.felipes@ritterdosreis.br обсуждение исходный текст |
Ответ на | Re: quick question about PreparedStatements (Barry Lind <blind@xythos.com>) |
Ответы |
Re: quick question about PreparedStatements
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Список | pgsql-jdbc |
Hm... ok, but (just curious) this is a backend or driver limitation? On Wed, 06 Aug 2003 19:57:37 -0700 Barry Lind <blind@xythos.com> wrote: > Yes you can only have one active result set per statement. > > --Barry > > Felipe Schnack wrote: > > I don't know, maybe I just don't understand something about Prep. Statements, but why they have a reference to a ResultSetit has created? To me make more sense the opposite, the ResultSets reference the Statement... > > Anyone can confirm I can only have one resultset per statement? > > > > On Fri, 25 Jul 2003 09:06:58 +0100 > > Paul Thomas <paul@tmsl.demon.co.uk> wrote: > > > > > >>On 24/07/2003 19:55 Felipe Schnack wrote: > >> > >>> Can I use a single PreparedStatement to create various ResultSets and > >>>get data from all of them at the same time? > >> > >>I don't think so. The Javadoc for Statement says: > >> > >>"By default, only one ResultSet object per Statement object can be open at > >>the same time" > >> > >>To me, this suggests that some db's may allow multiple ResultSets per > >>Statement but that such extensions would be non-portable. Looking at the > >>source for AbstactJdbc1Statement, it has > >> > >>protected java.sql.ResultSet result = null; > >> > >>So it looks like PG has the one ResultSet to one Statement implementation. > >> > >>HTH > >> > >>-- > >>Paul Thomas > >>+------------------------------+---------------------------------------------+ > >>| Thomas Micro Systems Limited | Software Solutions for the Smaller > >>Business | > >>| Computer Consultants | > >>http://www.thomas-micro-systems-ltd.co.uk | > >>+------------------------------+---------------------------------------------+ > >> > >>---------------------------(end of broadcast)--------------------------- > >>TIP 3: if posting/reading through Usenet, please send an appropriate > >> subscribe-nomail command to majordomo@postgresql.org so that your > >> message can get through to the mailing list cleanly > > > > > > > > /~\ The ASCII Felipe Schnack (felipes@ritterdosreis.br) \ / Ribbon Campaign Analista de Sistemas X Against HTML Cel.: 51-91287530 / \ Email! Linux Counter #281893 Centro Universitário Ritter dos Reis http://www.ritterdosreis.br ritter@ritterdosreis.br Fone: 51-32303341
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