ORACLE FAQ

Q:sqlplus连接时报:ORA-12560: TNS:protocol adapter error A:1:cmd命令行上: C:> set ORACLE_SID=orcl orcl是设置的instance名字 在命令行上连接sqlplus如下: C:Documents and Settingsldwtxwh>sqlplus SQL*Plus: Release 10.1.0.2.0 - Production on 星期日 12月 20 18:22:28 2009 Copyright (c) 1982, 2004, Oracle. All rights reserved. Enter user-name: system Enter password: Connected to: Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Production With the Partitioning, OLAP and Data Mining options SQL> ok!连接完毕 2:C:Documents and Settingsldwtxwh>sqlplus SQL*Plus: Release 10.1.0.2.0 - Production on 星期日 12月 20 18:33:31 2009 Copyright (c) 1982, 2004, Oracle. All rights reserved. Enter user-name: sys@orcl SYSDBA Enter password: Connected to: Oracle Database10gEnterpriseEdition Release10.2.0.1.0 - Production With the Partitioning, OLAP and Data Mining options SQL> ok!连接完毕 现在用你的sqlplus就可以连接登陆了.