标题: SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plus [打印本页] 作者: 王亮 时间: 2020-12-29 17:42 标题: SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plus 在搭建DG备库时,在备库服务器中,登录sqlplus连接到数据库,却得到提示SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plus。情况如下:
[oracle@orcldg admin]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Tue Dec 29 17:32:21 2020
Copyright (c) 1982, 2009, Oracle. All rights reserved.
ERROR:
ORA-12162: TNS:net service name is incorrectly specified
SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plus