oracle 两个小问题

1、密码纯数字的问题（纯数字加双引号即可，连接时不用加双引号）。

SQL> create user test identified by 1;

create user test identified by 1

ORA-00988: missing or invalid password(s)

SQL> create user test identified by "1";

User created

SQL> grant connect to test;

Grant succeeded
SQL> conn test/1@s218;
Connected to Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 
Connected as test

2、能ping通，但是tnsping 不通的问题。

  关掉目标服务器的防火墙或者是添加例外。