Hi Tiger_DB,
Your problem "java.lang.UnsatisfiedLinkError: ocijdbc11.dll already loaded in another classloader." appear When you try to define the schema by clicking on Guess Schema? Could you use other DB to test it? The purpose is to make sure something wrong with your Oracle OCI or something wrong with talend component. In addition, which talend production version do you used, and we will take a testing for it.
Best regards
Sabrina