Oracal提供了好多的默认用户名，安装成功后的口令管理可以看到 sys，system 两个用户名，没有锁定，密码也都是空的，我没有改动。如何用这两个帐号登录呢？密码是多少啊。 我在安装的时候有一步是设置了所有账户用同一口令，这个设置有什么用？

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Oracle is hoping that new security, testing, and management features offered in Oracle Database 11g will lead users to migrate to the major release of the vendor’s database sooner rather than later. [ ...

First of all, we need to get the Oracle 11g on our system. If you already have the file, you are good to skip this method and move to the installation part, but if ...