oracle client 配置补充（oracle的配置）

其他：关于配置文件tnsnames.ora

SID的方式：

DB_82_204 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = ip)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SID = ora11g)
    )
  )

service_name：

DB_82_233 =
    (DESCRIPTION =
        (ADDRESS_LIST =
            (ADDRESS = (PROTOCOL = TCP)(HOST = ip )(PORT = 1521))
        )
        (CONNECT_DATA =
            (SERVICE_NAME = orcl.oracle11g.com )
        )
    )

这就要注意登录的时候数据库如何填写，是哪种方式：

ip:orcl sid
ip/orcl servicec_name

也就是这边，由于我配置的是SERVICE_NAME = ORCL，所以IP/service_name（也就是ip/ORCL）