Re: Array paramiters

From: "ben sagal" <bsagal(at)gmail(dot)com>
To: "Andreas Joseph Krogh" <andreak(at)officenet(dot)no>
Cc: pgsql-jdbc(at)postgresql(dot)org
Subject: Re: Array paramiters
Date: 2007-06-05 14:46:48
Message-ID: b72a6e130706050746m37c191e7j3d5ceababe467566@mail.gmail.com
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I would ideally like to use a prepared statement, in which i can on each
execution insert a different array? the method u suggest will not allow use
of a prepared statement.

thanks Ben

On 6/5/07, Andreas Joseph Krogh <andreak(at)officenet(dot)no> wrote:
>
> On Tuesday 05 June 2007 16:23:29 ben sagal wrote:
> > is there any way to do that with a variable amount of elements in the
> > array?
>
> I'm not quite sure what you mean?
> Say you have the following:
>
> int[] num = new int[]{1,2,3};
> StringBuffer sb = new StringBuffer();
> sb.append("SELECT * FROM items WHERE id IN(").append(generateCSV("?",
> num.length)).append(")");
> for (int i = 0; i < num.length; i++) {
> ps.setInt(i, num[i]);
> }
> ps.executeQuery();
>
> The generateCSV-method must return a comma-separated String, in this case
> the
> String "?,?,?", because num-array has length==3.
>
> then num-array can be of any lenth you want.
>
> --
> Andreas Joseph Krogh <andreak(at)officenet(dot)no>
> Senior Software Developer / Manager
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