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.
从cx_Oracle installation instructions:
从cx_Oracle installation instructions on interoperability:
您的快速解决方案是安装12.1或12.2即时客户端RPM。(较长的解决方案是将数据库升级到受支持的版本!)你知道吗
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