OBIEE 18.104.22.168 installation fails with the error message
64254: Encountered error: oracle.mds.exception.MDSRuntimeException: MDS-00003: error connecting to the database
java.sql.SQLException: ORA-01017: invalid username/password; logon denied
When RCU database version is Oracle 12.2 + , 18C installation will not succeed. Root cause of this issue is sec_case_sensitive_logon which is set to TRUE by default on these database version.
If we disable this property still it doessnt help installation to get succeed.
12.2 is the highest DB version that can be used for RCU on OBIEE 22.214.171.124