ORA-12545: 因目标主机或对象不存在， 连接失败的错误处理

分别在rac的两个结点上执行以下语句后，错误不再出现：

ALTER SYSTEM SET LOCAL_LISTENER = '(ADDRESS = (PROTOCOL = TCP)(HOST = 192.98.10.1)(PORT = 1521))' SID = 'node1';

ALTER SYSTEM SET LOCAL_LISTENER = '(ADDRESS = (PROTOCOL = TCP)(HOST = 192.98.10.2)(PORT = 1521))' SID = 'node2';