Oracle 12c登录问题2——ERROR:ORA——28009:Connection as SYS should be as SYSDBA or SYSOPER

ERROR:ORA——28009:Connection as SYS should be as SYSDBA or SYSOPER
Oracle 12c登录问题2——ERROR:ORA——28009:Connection as SYS should be as SYSDBA or SYSOPER

错误如上图所显示:
错误提示你sys应该和sysdba或者sysoper所联合使用
即如下图:

Oracle 12c登录问题2——ERROR:ORA——28009:Connection as SYS should be as SYSDBA or SYSOPER
在sys 后面加上 as sysdba即可解决问题