风哥Oracle RAC+DG生产实战（3）：Oracle19c RAC DataGuard搭建2+1
后台登录Oracle，新增server_name
# 进入oracle容器
root@ubu43-211:~# docker exec -it o11 bash
root@88ac1e157079:/# su - oracle # 切换用户
oracle@88ac1e157079:~$ sqlplus / as sysdba # 登录后台
SQL*Plus: Release 11.2.0.2.0 Production on Tue Sep 7 15:54:02 2021
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Produ
