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Groups > comp.lang.java.programmer > #16142

JDBC, PreparedStatement and named parameters

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I'm rather new to JDBC, and somewhat experienced with
database access in other languages, like with ProC or
with the sqlplus-shell.

While in C/C++ eSql with ProC (not sure about correct
nomenclature) I can use named variables for the parameters,
jdbc seems like it would only allow positional parameters.

With Google, I stumbled over this approach:

  http://www.javaworld.com/javaworld/jw-04-2007/jw-04-jdbc.html

which boils down to pre-processing the sql-statement, replacing
the named variables by "?" while creating an array of the parameters
such, that e.g. a snippet like this:
   "...  :a :c :b :a ..."  and setting a -> x1, b -> x2, c -> x3
would turn into
   "...  ? ? ? ? ..." with an parameter array of { x1, x3, x2, x1 }

That almost looks like what I was hoping for, but when I see
that the article is 5 years old, then I'd hope that something
similar might meanwhile have been turned into a standard...

Does anyone here know of a way to use either named variables,
or at least something like these "foo {1} bar {0}" things
used in jsf4j and java.text.MessageFormat?

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JDBC, PreparedStatement and named parameters Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-07-20 09:39 +0000
  Re: JDBC, PreparedStatement and named parameters markspace <-@.> - 2012-07-20 06:31 -0700
    Re: JDBC, PreparedStatement and named parameters Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-07-20 14:52 +0000
      Re: JDBC, PreparedStatement and named parameters markspace <-@.> - 2012-07-20 08:15 -0700
        Re: JDBC, PreparedStatement and named parameters Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-07-20 16:26 +0000
          Re: JDBC, PreparedStatement and named parameters markspace <-@.> - 2012-07-20 09:37 -0700
            Re: JDBC, PreparedStatement and named parameters Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-07-20 21:04 +0000
              Re: JDBC, PreparedStatement and named parameters markspace <-@.> - 2012-07-20 14:12 -0700
                Re: JDBC, PreparedStatement and named parameters Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-07-20 22:35 +0000
                Re: JDBC, PreparedStatement and named parameters markspace <-@.> - 2012-07-20 16:08 -0700
                Re: JDBC, PreparedStatement and named parameters Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-07-21 14:32 +0000
                Re: JDBC, PreparedStatement and named parameters Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-07-24 16:18 +0000
            Re: JDBC, PreparedStatement and named parameters Arne Vajhøj <arne@vajhoej.dk> - 2012-07-20 22:13 -0400
  Re: JDBC, PreparedStatement and named parameters Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-07-20 10:22 -0700
    Re: JDBC, PreparedStatement and named parameters Lew <lewbloch@gmail.com> - 2012-07-20 11:00 -0700
  Re: JDBC, PreparedStatement and named parameters Arne Vajhøj <arne@vajhoej.dk> - 2012-07-20 22:11 -0400
    Re: JDBC, PreparedStatement and named parameters Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-07-21 14:47 +0000
      Re: JDBC, PreparedStatement and named parameters jebblue <n@n.nnn> - 2012-07-23 22:14 -0500
        Re: JDBC, PreparedStatement and named parameters jebblue <n@n.nnn> - 2012-07-23 22:19 -0500
  Re: JDBC, PreparedStatement and named parameters Roedy Green <see_website@mindprod.com.invalid> - 2012-07-21 15:00 -0700
    Re: JDBC, PreparedStatement and named parameters Arne Vajhøj <arne@vajhoej.dk> - 2012-07-21 21:53 -0400

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