http://www.jb51.cc/article/p-znahwtyf-ve.html
首先,在Oracle client端tnsping,结果是ok的.
C:\Users\Administrator>tnsping highgo1 TNS Ping Utility for 32-bit Windows: Version 10.2.0.3.0 - Production on 09-MAR-2017 13:57:58 Copyright (c) 1997,2006,Oracle. All rights reserved. Used parameter files: H:\oracle\product\10.2.0\client_1\network\admin\sqlnet.ora Used TNSNAMES adapter to resolve the alias Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.80.12)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = highgo1))) OK (30 msec)
然后在Oracle Client端用sqlplus登录,是登录不上的:
C:\Users\Administrator>sqlplus system/oracle@highgo1 sql*Plus: Release 10.2.0.3.0 - Production on Thu Mar 9 13:58:17 2017 Copyright (c) 1982,Oracle. All Rights Reserved. ERROR: ORA-28040: No matching authentication protocol Enter user-name:
然后到Oracle 12.2的Server端的$ORACLE_HOME/network/admin/目录下,
修改sqlnet.ora文件,添加如下内容:
sqlNET.ALLOWED_logoN_VERSION_SERVER=10 sqlNET.ALLOWED_logoN_VERSION_CLIENT=10修改之后,是立即生效的,不需要重启监听.
额外说明:如上仅仅是权宜之计,因为根据MOS文章:
Client / Server Interoperability Support Matrix for Different Oracle Versions (Doc ID 207303.1) 10.2的client端和12.2的server端---这么用是不受支持的. 11.2.0.3/11.2.0.4的client端和12.2的server端---这么用是受支持的.