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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-2927) Procedures can't return values other than ResultSets
Date Tue, 16 Oct 2012 18:45:03 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13477255#comment-13477255

Rick Hillegas commented on DERBY-2927:

Hi Dag,

I'm confused. I haven't looked at the patch but I thought you were moving in the direction
of implementing procedures which return values. Going back through the comments, I see that
you may be attempting something more modest: using JDBC escape syntax to call a function.
Perhaps that functionality belongs on a separate issue. It seems to me that what is being
asked for on this issue is a way to bind a SQL routine to a static method which both returns
a value and supports IN, OUT, and IN/OUT args. Thanks.
> Procedures can't return values other than ResultSets
> ----------------------------------------------------
>                 Key: DERBY-2927
>                 URL: https://issues.apache.org/jira/browse/DERBY-2927
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions:
>         Environment: Java 1.4.2
> Windows XP SP 2
>            Reporter: Jacques Coetzee
>              Labels: derby_triage10_10
>         Attachments: derby-2927-diag-2.diff, derby-2927-diag-2.stat, derby-2927-diag-3.diff,
derby-2927-diag-3.stat, derby-2927-diag.diff, derby-2927-diag.stat
> First off, this is not really a bug, it's more of a restriction.
> As per the needs of my inhouse framework I need a procedure to be able to return a value
other than
> a ResultSet (I need a integer). The reason I need to use a procedure; is because I'm
using INOUT parameters.
> When call my procedure, it needs to look like this:
> { ? = call myProcedure(?,?,?,?,?,?)}
> Where the first ? represents a status-code, ie a failure = -1, and a successfull would
be 1.
> All the other procedure paramters are INOUT.
> If I where to use normal scripting methods in any other DB, for instance DB2 or Oracle
> then I would be able to do this. It seems that the problem has to do with using
> JAVA "Stored" Procedures.
> Is it possible to either make procedures return primitive types, OR
> for Functions to be able to use OUT and INOUT paramters?
> I've got High Hopes for Derby, but it's issues like this that might just
> sway me to use a different DB.
> I appreciate any feedback you can give me.

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