在PL/SQL中用scott登录，会报ORA-2800:the account is locked。既然帐号被锁，那我们就解锁。用system登录，输入命令alter user scott account unlock; 解锁帐号。再次尝试登录，报ORA-28001: The password has expired 。密码到期。输入命令alter user scott identified by tiger; 修改密码。再次登陆，搞定！
终于又可以用我的scott了！
在PL/SQL中用scott登录，会报ORA-2800:the account is locked。既然帐号被锁，那我们就解锁。用system登录，输入命令alter user scott account unlock; 解锁帐号。再次尝试登录，报ORA-28001: The password has expired 。密码到期。输入命令alter user scott identified by tiger; 修改密码。再次登陆，搞定！
终于又可以用我的scott了！