我本地php连接远程oracle 数据库，我下载了 oracle的客户端instantclient-basic-nt-11.2.0.2.0，配置了环境变量，把开启了php_oci8和 php_oci8_11，重启了电脑然后用连接，报了下面的错误
Warning: ocilogon() [function.ocilogon]: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor in D:\WWW\php-interface\sqlserver.php on line 53
ORA-12514: TNS:listener does not currently know of service requested in connect descriptor