我们无法从系统命令提示符下使用SSH隧道（在腻子中设置）连接到Oracle DB。失败并显示以下错误：
C:\Users\yadavvin>tnsping APPSP
TNS Ping Utility for 32-bit Windows: Version 11.2.0.1.0 - Production on 16-OCT-2019 11:54:54
Copyright (c) 1997, 2010, Oracle. All rights reserved.
sed parameter files:
C:\Oracle\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact **(DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = appsp)))**
OK (130 msec)
C:\Users\yadavvin>
C:\Users\yadavvin>sqlplus arpadmin/password@appsp
SQL*Plus: Release 11.2.0.1.0 Production on Wed Oct 16 11:55:48 2019
Copyright (c) 1982, 2010, Oracle. All rights reserved.
ERROR:
**ORA-01017: invalid username/password; logon denied**
Enter user-name:
C:\Users\yadavvin>
但是，当使用SQL DEVELOPER连接时，相同的凭据可用于相同的SSH隧道。
将对解决此问题的任何建议表示感谢。
Oracle DB Version: Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
Oracle Client Version: Release 11.2.0.1.0 Production
在SQLPLUS中添加完整的合格数据库字符串并检查连接：
C:\Users\yadavvin>sqlplus arpadmin/Welc0me2abcr@127.0.0.1:1521/AVSAPPSP
SQL*Plus: Release 11.2.0.1.0 Production on Wed Oct 16 14:49:50 2019
Copyright (c) 1982, 2010, Oracle. All rights reserved.
ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified