ORA-28009
connection as SYS should be as SYSDBA or SYSOPER
Cause
An attempt was made to connect as SYS without an administrative connection clause.
Action
Use the appropriate administrative connection clause. For example:
- connect SYS/password AS SYSDBA
- connect SYS/password AS SYSOPER
Attempting to connect as SYS without an administrative connection clause is no longer supported. To connect as SYS specify either the AS SYSDBA database administrator clause or one of the separation-of-duty clauses (AS SYSOPER, AS SYSASM, AS SYSBACKUP, AS SYSDG, AS SYSKM, or AS SYSRAC).