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https://issues.apache.org/jira/browse/DERBY-5585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15400367#comment-15400367
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ASF subversion and git services commented on DERBY-5585:
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Commit 1754588 from [~bryanpendleton] in branch 'code/trunk'
[ https://svn.apache.org/r1754588 ]
DERBY-5585: Improve error message when user function can't find class.
This patch was contributed by Danoja Dias (danojadias at gmail dot com)
Several test output files are adjusted to reflect the new error message text.
> Improve error messages used when Derby can't find the class or method backing
> up a SQL routine or type
> ------------------------------------------------------------------------------------------------------
>
> Key: DERBY-5585
> URL: https://issues.apache.org/jira/browse/DERBY-5585
> Project: Derby
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 10.9.1.0
> Reporter: Rick Hillegas
> Assignee: Danoja Dias
> Priority: Minor
> Labels: derby_triage10_10
> Fix For: 10.13.0.0
>
> Attachments: Derby-5585.diff, Derby-5585_2.diff, Derby5585_3.diff,
> errors.zip
>
>
> When the code supporting user-written routines and types is put into jar
> files in the database, the user also needs to wire the jar files together by
> setting the derby.database.classpath property. People often neglect to do
> this and Derby documentation in this area could be improved. It would be good
> to at least improve the error messages which Derby raises in this situation:
> 42X50 and 42X51. Those messages should tell the user that one of the reasons
> for the failure might be an un/misconfigured derby.database.classpath
> property. The following script shows the error messages:
> connect
> 'jdbc:derby:memory:db;create=true;user=test_dbo;password=test_dbopassword';
> create function foo( a int ) returns int
> language java parameter style java no sql
> external name 'Bop.doowop';
> create function bar( a int ) returns int
> language java parameter style java no sql
> external name 'java.lang.Integer.doowop';
> values ( foo( 1 ) );
> values ( bar( 1 ) );
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