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https://issues.apache.org/jira/browse/DERBY-1828?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12489912
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Dag H. Wanvik commented on DERBY-1828:
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The class "28" seems correct for failure to establish a connection
when checking credentials, cf. its usage in section 17.1 Connect
statement (SQL 2003). Since 2850H, 2850I and 2850J are thrown when
checking powers when connecting (albeit in a special mode), I think
they are correct to use the 28 class.
I notice that in the plain connect case of connect failure due to
credentials check, class "08" is used (LOGIN_FAILED "08004"). It seems
to me this should be a "28" class error as well; I read the "08" class
"connection exception" as being for other failures related to a
connection (JDBC NonTransientConnectionException or
SQLTransientConnectionException). The failed login due to credentials
checking seems to belong in the "JDBC N/A SQLInvalidAuthorizationException"
subclass.
Why "04" is used for AUTH_DATABASE_CONNECTION_REFUSED, I can't figure
out. Maybe someone can shed light on this. This also seems to be a 28
class error to me.
Changing 08004 seems risky though, it would break many existing apps...
> Access rule violations should use a SQL state starting with '42' according to
> the SQL standard.
> -----------------------------------------------------------------------------------------------
>
> Key: DERBY-1828
> URL: https://issues.apache.org/jira/browse/DERBY-1828
> Project: Derby
> Issue Type: Bug
> Components: JDBC
> Affects Versions: 10.2.1.6, 10.3.0.0
> Reporter: Daniel John Debrunner
> Assigned To: Jørgen Løland
>
> The SQL standard says that SQL State '42' is for "syntax error or access
> rule violation" (section 23.1).
> There is a question of what JDBC 4.0 exception should be thrown for a access
> rule violation,
> JDBC 4.0 maps '42' to SQLSyntaxErrorException which seems wrong for an access
> rule.
> Message thread:
> http://mail-archives.apache.org/mod_mbox/db-derby-dev/200609.mbox/[EMAIL
> PROTECTED]
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