ORA-01017 invalid username/password;logon denied" (密码丢失解决方案）
2011-05-22 12:51
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1、先确认是否输错 用户名和密码
2、如果的确是丢失密码的话：
查看sqlnet.ora 如果是 SQLNET.AUTHENTICATION_SERVICES= (NONE) ，
需更改为SQLNET.AUTHENTICATION_SERVICES= (NTS)
在SQL*Plus中执行如下命令：
SQL>conn/as sysdba (操作系统认证登录)
SQL>alter user system identified by system; (回车后用户system的密码会更改为system)
2、如果的确是丢失密码的话：
查看sqlnet.ora 如果是 SQLNET.AUTHENTICATION_SERVICES= (NONE) ，
需更改为SQLNET.AUTHENTICATION_SERVICES= (NTS)
在SQL*Plus中执行如下命令：
SQL>conn/as sysdba (操作系统认证登录)
SQL>alter user system identified by system; (回车后用户system的密码会更改为system)
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