https://blog.csdn.net/itmyhome1990/article/details/8796781

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1、下载Instant Client

        Oracle官网地址:
http://www.oracle.com/technetwork/database/features/instant-client/index-097480.html

<http://www.oracle.com/technetwork/database/features/instant-client/index-097480.html>

        或CSDN免积分下载:instantclient-basic-nt-11.2.0.2.0
<http://download.csdn.net/detail/itmyhome/6776659>


        下载后是一个压缩文件,解压后的文件叫instantclient_11_2,放在自己喜欢的目录,如:D:/instantclient_11_2


2、D:/instantclient_11_2目录下新建目录network,在network目录下再新建目录admin,在admin目录下新建tnsnames.ora,

      使用文本编辑器输入如下内容:

MyOracle = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.1.4)(PORT
= 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl) ) )
修改自己的本地主机名和远程数据库实例名

3、添加一个环境变量,名为TNS_ADMIN,值为tnsnames.ora文件所在路径。比如我的本机为:D:/instantclient_11_2/network/admin

4、设置ORACLE的语言,添加环境变量NLS_LANG ,值为SIMPLIFIED CHINESE_CHINA.ZHS16GBK

5、下载并安装PL.SQL.Developer配置应用

       下载地址:PL/SQL Developer <http://download.csdn.net/detail/itmyhome/6776513>


       配置tools->preferences->connection

      Oracle Home
      D:/instantclient_11_2
 
      OCI library
      D:/instantclient_11_2/oci.dll



6、关闭PL/SQL Developer,重起Developer.
 


      主机名就会出现在PL/SQL Developer的列表里,输入用户名密码,就可以登录远程oracle数据库了