ORA-01017 Invalid Username/Password when connecting to 11g database from 9i client

Question

I\'m trying to connect to a schema on 11g (v11.2.0.1.0) from a PC with 9i (v9.2.0.1) client. It seems to connect fine to some schemas, but not this one - it comes back with

Answer 1

Oracle 11 G and 12 C versions suggest to use more complex passwords, Although there is no issues during the user creation. The password must be alphanumeric and with special character.

Verify the password version and status of the user:

select * from dba_users where username = ;

Amend it to be like below in case of 11G 12C:

alter user  identified by Pass2019$;

Now test connection!