1. 下载instantclient-basic-win32-11.2.0.1.0

Oracle Instant Client – Free tools and libraries for connecting to Oracle Database

(oracle官网下载地址:http://www.oracle.com/technetwork/topics/winsoft-085727.html ,下载地址2:http://download.csdn.net/detail/czw2010/5732241)

2. 解压instantclient-basic-win32-11.2.0.1.0并放置在oracle安装目录的product下(放置位置无强制要求,可随意放置),如下图:

3. 拷贝D:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN下的tnsnames.ora文件到instantclient_11_2下。

4. 打开PLSQL Developer,选择Tools ->perference -> Connection,配置其中的Oracle Home和OCI Library项,如下图所示:

其中, Oracle Home:D:\app\Administrator\product\instantclient_11_2

  OCI Library:D:\app\Administrator\product\instantclient_11_2\oci.dll

5. 配置系统环境变量

右击”我的电脑” – “属性” – “高级” – “环境变量” – “系统环境变量”:
1>.选择”Path” – 点击”编辑”, 把 “D:\app\Administrator\product\instantclient_11_2;” 加入;
2>.点击”新建”, 变量名设置为”TNS_ADMIN”, 变量值设置为”D:\app\Administrator\product\instantclient_11_2;”, 点击”确定”;
3>.点击”新建”, 变量名设置为”NLS_LANG”, 变量值设置为”SIMPLIFIED CHINESE_CHINA.ZHS16GBK”, 点击”确定”;