cx_Oracle does not work with Oracle database 10gR2

Question

using python3.6 I have installed cx_Oracle 6.4.1 and the instantclient for Oracle 10gR2 (basic-10.2.0.5.0-linux-x64) but it doesn't work. In previous releases of cx_Oracle it used to connect with 10gR2 databases but now it seems not to be supported anymore.

Is there a way in python to connect to this version of database?

Thanks!

Answer 1

From the cx_Oracle installation instructions :

Oracle client libraries versions 12.2, 12.1 and 11.2 are supported

From the cx_Oracle installation instructions on interoperability :

Oracle's standard client-server network interoperability allows connections between different versions of Oracle Client libraries and Oracle Database. For certified configurations see Oracle Support's Doc ID 207303.1. In summary, Oracle Client 12.2 can connect to Oracle Database 11.2 or greater. Oracle Client 12.1 can connect to Oracle Database 10.2 or greater. Oracle Client 11.2 can connect to Oracle Database 9.2 or greater. The technical restrictions on creating connections may be more flexible. For example Oracle Client 12.2 can successfully connect to Oracle Database 10.2.

Your quick solution is to install the 12.1 or 12.2 Instant Client RPMs. (The longer solution is to upgrade your DB to a supported release!)