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As for the changing default schema in connectionstring when connecting
oracle db, I'm not sure what's the provider you're using in your
application? Different provider may have different configuration properteis.
I'm not quite sure what you mean by changing the schema in oracle
connection string. Do you mean that you want to change the order of the
properties or change the value of them? If so, yes you can change it. But
you have to follow the rules of it. Please check the following link for