使用本地的SQLPlus连接服务器上的Oracle数据库，这是由于本地有安装了Oracle数据库服务，所以才会系统先提示：ORA-12504:

TNS: 监听程序在 CONNECT_DATA 中未获得 SERVICE_NAME

再次输入用户名密码系统又提示：

ORA-12560: TNS: 协议适配器错误。如图所示：

提示：修改三个文件，但是要看你本地数据库服务安装在哪里：

我的是

：F:\app\qq\product\11.2.0\dbhome_1\NETWORK\ADMIN

服务器上的Oracle数据库的配置文件内容如下：

#######

listener.ora 配置文件

# listener.ora Network

Configuration File:

F:\oracle\product\10.2.0\instantclient_12_1\listener.ora

# Generated by Oracle configuration

tools.

SID_LIST_LISTENER =

(SID_LIST

=

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME =

F:\oracle\product\10.2.0\instantclient_12_1)

(PROGRAM = extproc)

)

)

LISTENER =

(DESCRIPTION_LIST

=

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST =

Lenovo-PC)(PORT = 1521))

)

)

#### tnsnames.ora 配置文件内容：

# tnsnames.ora Network Configuration File:

F:\oracle\product\10.2.0\instantclient_12_1\tnsnames.ora

# Generated by Oracle configuration

tools.

ORCL =

(DESCRIPTION

=

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST =

Lenovo-PC)(PORT = 1521))

)

(CONNECT_DATA =

(SERVICE_NAME = orcl)

)

)

EXTPROC_CONNECTION_DATA =

(DESCRIPTION

=

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = IPC)(KEY =

EXTPROC1))

)

(CONNECT_DATA =

(SID = PLSExtProc)

(PRESENTATION = RO)

)

)

--提示这个就是你要连接到服务器上的oracle

数据库名称：gzant

，和ip：192.168.1.10

gzant

=

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL =

TCP)(HOST = 192.168.1.10)(PORT = 1521))

)

(CONNECT_DATA =

(SID =

gzant)

)

)

### sqlnet.ora 配置文件内容：

# sqlnet.ora Network Configuration File:

F:\oracle\product\10.2.0\instantclient_12_1\sqlnet.ora

# Generated by Oracle configuration tools.

SQLNET.AUTHENTICATION_SERVICES= (NTS)

NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)