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Tag Archives: ora-28040 oracle 19c

ORA-03134: Connections to this server version are no longer supported.

Mehmet Salih Deveci May 4, 2021 ORA-ERRORS 0

I got ” ORA-03134: Connections to this server version are no longer supported. ” error in Oracle database.

ORA-28040: No matching authentication protocol

Mehmet Salih Deveci March 1, 2019 ORA-ERRORS 10

You can get ” ORA-28040: No matching authentication protocol ” error because of Oracle Client incompatibility when you upgrade Oracle database from 11g to 12c or Oracle 18c, 19c,