无法使用SQLPlus连接到数据库

Question

我已将连接字符串配置为tnsnames.ora。在我的sqlnet.ora中，我的内容如下：

NAMES.DIRECTORY_PATH= (LDAP, TNSNAMES, HOSTNAME)
NAMES.DEFAULT_DOMAIN = WORLD
TRACE_LEVEL_CLIENT = OFF
SQLNET.EXPIRE_TIME = 30

当我从tnsnames.ora向SID进行tnsping呼叫时，我会发现错误：

TNS-03505: Failed to resolve name

tnsname.ora的示例配置

TNS_NAME =
    (DESCRIPTION =
        (ADDRESS_LIST =
            (ADDRESS = (PROTOCOL = TCP)(HOST = HOST.NAME)(PORT = PORT_NUMBER))
        )
        (CONNECT_DATA =
            (SERVICE_NAME = SID)
        )
    )

我在做什么错？

Answer 1

我使用以下连接字符串而不使用tnsnames.ora进行映射以连接到远程数据库：

sqlplus username/password@(DESCRIPTION =
    (ADDRESS = (PROTOCOL= TCP)(Host= hostname.network)(Port= remote_port))
    (CONNECT_DATA = (SID = remote_SID))
  )