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Groups > comp.lang.java.programmer > #37211
| From | Arne Vajhøj <arne@vajhoej.dk> |
|---|---|
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: Which databases are the most used with Java |
| Date | 2017-08-13 20:41 -0400 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <omqrk1$io2$1@gioia.aioe.org> (permalink) |
| References | (4 earlier) <87a833wzcx.fsf@munus.decebal.nl> <evbal8Fs681U1@mid.individual.net> <87pobz9yv5.fsf@munus.decebal.nl> <omqdjg$1ksm$1@gioia.aioe.org> <871sofrwsk.fsf@munus.decebal.nl> |
On 8/13/2017 5:18 PM, Cecil Westerhof wrote:
> Arne Vajhøj <arne@vajhoej.dk> writes:
>> There are also the possibility in some databases to execute multiple
>> SELECT in a single execute/executeQuery and then you will get more than
>> one ResultSet back.
>>
>> This is used like:
>>
>> Statement stmt = con.createStatement();
>> ResultSet rs1 = stmt.executeQuery("...");
>> ...
>> rs1.close();
>> stmt.getMoreResults();
>> ResultSet rs2 = stmt.getResultSet();
>> ...
>> rs2.close();
>> stmt.close();
>
> Since Java7 we (or at least I) do not program that way anymore. You
> use try with resources. You only want the ResultSet, but to prevent a
> resource leak, you need to also create the Statement. That makes my
> hair stand up on the back of my neck.
You have 3 levels of resources: Connection, Statement, ResultSet.
You need 3 levels of try.
Arne
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Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-13 07:58 +0200
Re: Which databases are the most used with Java Marcel Mueller <news.5.maazl@spamgourmet.org> - 2017-08-13 09:33 +0200
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-13 11:14 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-13 16:53 -0400
Re: Which databases are the most used with Java Sebastian <nowhere@nirvana.org> - 2017-08-13 09:36 +0200
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-13 11:07 +0200
Re: Which databases are the most used with Java Andreas Leitgeb <avl@logic.at> - 2017-08-13 09:46 +0000
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-13 12:12 +0200
Re: Which databases are the most used with Java Robert Klemme <shortcutter@googlemail.com> - 2017-08-13 17:47 +0200
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-13 19:11 +0200
Re: Which databases are the most used with Java Robert Klemme <shortcutter@googlemail.com> - 2017-08-13 20:26 +0200
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-13 21:30 +0200
Re: Which databases are the most used with Java Martin Gregorie <martin@address-in-sig.invalid> - 2017-08-13 20:00 +0000
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-13 16:43 -0400
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-13 16:42 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-13 23:18 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-13 20:41 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-14 03:04 +0200
Re: Which databases are the most used with Java lewbloch@gmail.com - 2017-08-14 11:12 -0700
Re: Which databases are the most used with Java Eric Douglas <e.d.programmer@gmail.com> - 2017-08-14 12:42 -0700
Re: Which databases are the most used with Java Robert Klemme <shortcutter@googlemail.com> - 2017-08-21 22:25 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-21 19:50 -0400
Re: Which databases are the most used with Java Eric Douglas <e.d.programmer@gmail.com> - 2017-08-14 13:48 -0700
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-15 07:27 +0200
Re: Which databases are the most used with Java Martin Gregorie <martin@address-in-sig.invalid> - 2017-08-15 10:25 +0000
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-15 14:15 +0200
Re: Which databases are the most used with Java Martin Gregorie <martin@address-in-sig.invalid> - 2017-08-15 14:37 +0000
Re: Which databases are the most used with Java lewbloch@gmail.com - 2017-08-17 14:52 -0700
Re: Which databases are the most used with Java Sebastian <nowhere@nirvana.org> - 2017-08-18 00:09 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-17 18:14 -0400
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-17 18:19 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-18 06:43 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-15 11:02 -0400
Re: Which databases are the most used with Java Patrick Roemer <sangamon@netcologne.de> - 2017-08-15 13:12 +0200
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-15 14:41 +0200
Re: Which databases are the most used with Java Eric Douglas <e.d.programmer@gmail.com> - 2017-08-15 06:11 -0700
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-15 16:33 +0200
Re: Which databases are the most used with Java Eric Douglas <e.d.programmer@gmail.com> - 2017-08-15 08:05 -0700
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-15 18:48 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-15 11:12 -0400
Re: Which databases are the most used with Java Eric Douglas <e.d.programmer@gmail.com> - 2017-08-15 08:19 -0700
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-15 11:46 -0400
Re: Which databases are the most used with Java Eric Douglas <e.d.programmer@gmail.com> - 2017-08-15 08:43 -0700
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-15 11:51 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-15 18:38 +0200
Re: Which databases are the most used with Java Patrick Roemer <sangamon@netcologne.de> - 2017-08-15 16:14 +0200
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-15 17:42 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-15 11:09 -0400
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-15 11:06 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-15 18:42 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-16 21:13 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-17 09:04 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-17 18:16 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-18 06:51 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-18 08:52 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-18 15:31 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-18 15:09 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-18 23:14 +0200
Re: Which databases are the most used with Java Eric Douglas <e.d.programmer@gmail.com> - 2017-08-18 07:15 -0700
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-18 15:16 -0400
Re: Which databases are the most used with Java Sebastian <nowhere@nirvana.org> - 2017-08-13 18:08 +0200
Re: Which databases are the most used with Java Robert Klemme <shortcutter@googlemail.com> - 2017-08-13 20:30 +0200
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-13 21:35 +0200
Re: Which databases are the most used with Java Sebastian <nowhere@nirvana.org> - 2017-08-13 22:24 +0200
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-13 23:33 +0200
Re: Which databases are the most used with Java Robert Klemme <shortcutter@googlemail.com> - 2017-08-14 18:18 +0200
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-15 07:47 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-16 21:21 -0400
Re: Which databases are the most used with Java Sebastian <nowhere@nirvana.org> - 2017-08-17 23:33 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-17 18:11 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-13 23:24 +0200
Re: Which databases are the most used with Java Robert Klemme <shortcutter@googlemail.com> - 2017-08-14 18:14 +0200
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-15 07:45 +0200
Re: Which databases are the most used with Java Sebastian <nowhere@nirvana.org> - 2017-08-13 22:16 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-13 16:50 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-13 23:35 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-13 21:14 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-14 10:24 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-13 16:45 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-13 23:36 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-13 20:42 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-14 03:06 +0200
Re: Which databases are the most used with Java lewbloch@gmail.com - 2017-08-13 09:59 -0700
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-13 17:04 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-14 00:06 +0200
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-14 00:35 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-13 20:44 -0400
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-14 03:12 +0200
Re: Which databases are the most used with Java Arne Vajhøj <arne@vajhoej.dk> - 2017-08-13 16:59 -0400
Re: Which databases are the most used with Java Joerg Meier <joergmmeier@arcor.de> - 2017-08-16 07:26 +0200
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-16 09:40 +0200
Re: Which databases are the most used with Java Graeme Geldenhuys <graemeg@example.net> - 2017-08-23 00:15 +0100
Re: Which databases are the most used with Java Cecil Westerhof <Cecil@decebal.nl> - 2017-08-23 12:09 +0200
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