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[protege-discussion] Error converting KB to Oracle Database and SQL trace

Norbert Berens bs at
Tue Oct 17 03:32:30 PDT 2006

Berens, Norbert <BS <at>> writes:

> I'm , trying to convert a file based protege project to an Oracle data
> base.MySQL and postgresql work fine, but when i try with Oracle 9.2 i'm
> getting errors. Unfortunaltely we urgently need Oracle as the backend
> store for our KB.
> We are using the latest Oracle-JDBC-Driver (ojdbc14.jar) with Protege
> 3.1.

> Are there any known limitations with Oracle, that i have to handle? 

The Oracle problem is solved. The ontology contained a rule with a documentation
with more than 20.000 characters and Oracle refused to insert this into a "LONG"

> To get a clearer view on what happens at the DB-Interface i tried to
> switch on the SQL trace within the protege.lax: 
> (SimpleJdbcDatabaseManager.trace=true) but i don't see any SQL commands
> on my console. How can I enable this trace? 

The SQL-trace is still not working.

Kind regards

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