Connection to sys should be as sysdba or sysoper
ORA-28010 – Oracle Error Code
Cannot expire external or global accounts
ORA-28011 – Oracle Error Code
The account will expire soon; change your password now
ORA-28020 – Oracle Error Code
IDENTIFIED GLOBALLY already specified
ORA-27548 – Oracle Error Code
Unable to unprepare IPC buffer
ORA-27549 – Oracle Error Code
Update of buffer prepared for remote update failed
ORA-27550 – Oracle Error Code
Incompatible remote IPC implementation detected string string string string
ORA-28000 – Oracle Error Code
The account is locked
ORA-27535 – Oracle Error Code
Exceeded the maximum vectored message size
ORA-28001 – Oracle Error Code
The password has expired