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From "Rick Hillegas (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DERBY-5585) Improve error messages used when Derby can't find the class or method backing up a SQL routine or type
Date Tue, 24 Jan 2012 17:22:41 GMT
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: 10.9.0.0
            Reporter: Rick Hillegas
            Priority: Minor


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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