Java ――对Swing、AWT和SWT的认识

1 在命令窗口中输入sqlplus /nolog
2 使用connect命令以sysdba身份登录connect /as sysdba
3 修改密码alter user scott identified by chao;(修改已经锁定的用户的密码)alter user scott identified by password account unlock;（锁定用户）alter user scott account lock;