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Regarding Result Sets from Stored Procedures and JDBC Native Driver, this is where I obtained this information from: http://www.as400.ibm.com/developer/jdbc/Faqs/JDBCFAQ.html#F8 Your right: it does refer specifically to accessing remote systems. Apologies for this. I believe my statement about the Toolbox issues still stand, though. Chris Jewell -----Original Message----- From: java400-l-admin@midrange.com [mailto:java400-l-admin@midrange.com]On Behalf Of Richard Dettinger Sent: Wednesday, October 03, 2001 9:52 AM To: java400-l@midrange.com Subject: RE: Stored procedure and close connection Re: unfortunately the native AS/400 'DB2' driver does not support this feature at all! Just a statement of clarification... the native JDBC driver has no known problems with ResultSets or multiple ResultSets but when you go to a remote system over DRDA, it is DRDA that can't support the SQL cursors. If there was something that could be done at the JDBC level, we would do it but this really has to do with system level components and is beyond our control. If I'm not understanding some aspect of what you think is not support, please send me e-mail outlining exactly what doesn't work. Regards, Richard D. Dettinger AS/400 Java Data Access Team "Biologists have a special word for stability -- dead" Larry Wall Open Source Developers Journal Issue 1, Jan 2000 "Christopher J. Jewell \(Jewell Consulting Inc.\)" <jewellcj@jewellconsult.com>@midrange.com on 10/03/2001 11:38:02 AM Please respond to java400-l@midrange.com Sent by: java400-l-admin@midrange.com To: <java400-l@midrange.com> cc: Subject: RE: Stored procedure and close connection I have had just this kind of problem recently with stored procedures returning SQL result sets and the AS/400 ToolBox JDBC Driver (unfortunately the native AS/400 'DB2' driver does not support this feature at all!). It seems that while Connection is threadsafe, Statement and ResultSets (cursors) are not. See http://www-1.ibm.com/servers/eserver/iseries/toolbox/faqjdbc.htm#faqB4 Thye solution is to use 'synchronized' in all relevant places. The strange thing is that I believe I did not have this issue when my code was installed on another AS/400. Unfortunately I do not have access to that box now, so I am unable to compare OS/400, Toolbox PTF levels. Hope this helps. Chris Jewell mailto:jewellcj@jewellconsult.com -----Original Message----- From: java400-l-admin@midrange.com [mailto:java400-l-admin@midrange.com]On Behalf Of DUCRET Gilles (GVA) Sent: Wednesday, October 03, 2001 3:16 AM To: JAVA400-L (E-mail) Subject: Stored procedure and close connection This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. -- [ Picked text/plain from multipart/alternative ] Hello everybody, I have had a strange problem on my system and i am wondering what is happening when, from the browser we clic on a new link while a stored procedure is being executed. Let me explain. We use WAS3.5 on the AS400, and the IBM Data Access Beans (com.ibm.db.*) in our java code I have done the following: Connected to our system through the internet. Information have been accessed into our database: - Get a connection from the pool - Call a stored procedure Since it was long to get a response, i have decided to clic on another link. what is happening with Websphere? What happens to the thread that was handling my DB request? At the end of the method that was called i have a try {} finally to make sure the connection is always returned. I have this question, because a colleague of mine get connected at the same time, and got the result of my query !!! I have checked all my code, it seems to be ok, completely thread safe. It is the very first time we have this (since more than 1 year). So i was wondering if the connection had been released properly or not, and if the other user could have received my connection. Is it possible that the connection has been released to the pool and have been given to the other user, but the stored procedure was still running (there is no new job with this stored proc). As a result the other user got my result. I don't think it hasnot been released because i have this finally in my code. I am quite sure that our java code is thread safe (checked and rechecked, plus ok since more than a year) Any idea? Gilles Ducret Wealth Management Division IT Architect Lloyds TSB Bank Tel: + 41 22 307 31 50 Mob: +41 79 217 21 41 ********************************************************************** This E-mail and any files transmitted with it are confidential and intended for the exclusive use of the addressee(s) only. You should not disclose its contents to any other person. If you are not the intended recipient please notify the sender immediately. ********************************************************************** _______________________________________________ This is the Java Programming on and around the iSeries / AS400 (JAVA400-L) mailing list To post a message email: JAVA400-L@midrange.com To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/cgi-bin/listinfo/java400-l or email: JAVA400-L-request@midrange.com Before posting, please take a moment to review the archives at http://archive.midrange.com/java400-l. _______________________________________________ This is the Java Programming on and around the iSeries / AS400 (JAVA400-L) mailing list To post a message email: JAVA400-L@midrange.com To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/cgi-bin/listinfo/java400-l or email: JAVA400-L-request@midrange.com Before posting, please take a moment to review the archives at http://archive.midrange.com/java400-l. _______________________________________________ This is the Java Programming on and around the iSeries / AS400 (JAVA400-L) mailing list To post a message email: JAVA400-L@midrange.com To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/cgi-bin/listinfo/java400-l or email: JAVA400-L-request@midrange.com Before posting, please take a moment to review the archives at http://archive.midrange.com/java400-l.
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