[cx-oracle-users] Extracting Oracle error codes, characterizing exceptions

[Jeff W. <jef...@sa...>]

Is there way to extract Oracle error codes other than by applying str() to
the exception and parsing the string?

Also, if I cannot connect to the Oracle database would that be a
DatabaseError or an InternalError?  

I am trying to use cx_Oracle to write a server that needs to be reliable
and I am trying to figure out how to handle possible exceptions returned
from Oracle.

I also noticed that violations of table constraints are DatabaseErrors,
rather than DataErrors.  Is this intended?  What are examples of
DataErrors?

Thanks,

Jeff