在尝试使用SQL Developer用SYSDBA连接数据库时总是报ORA-01017错误。 ORA-01017: invalid username/password; logon denied 实际上用户名密码是正确的，并且在数据库服务器上使用SQL*Plus通过监听连接也是正常的。 [sourcecode language=”sql” light=”true”]C:\Users\Kamus>sqlplus "sys/oracle@orcl11g as sysdba" SQL*Plus: Release 11.1.0.7.0 – Production on Fri Mar 12 12:17:01 2010 Copyright (c) 1982, 2008, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 – Production With the Partitioning, OLAP and Real Application Testing options SQL> [/sourcecode]…