oracle驱动安装odbc

Instant Client下载地址：http://www.oracle.com/technetwork/database/database-technologies/instant-client/downloads/index.html

把下载的instantclient-basic-windows.x64-12.2.0.1.0.zip压缩包解压，放到D:\Oracle \instantclient_12_2 目录下。

在“环境变量”的“系统变量”中增加：

1. ORACLE_HOME = D:\Oracle\instantclient_12_2
2. TNS_ADMIN = D:\Oracle\instantclient_12_2
3. NLS_LANG = SIMPLIFIED CHINESE_CHINA.ZHS16GBK

修改Path变量，在后面添加 $ORACLE_HOME$

新建tnsnames.ora文件。

# tnsnames.ora Network Configuration File: C:\oracle\product\10.2.0\db_1\network\admin\tnsnames.ora

# Generated by Oracle configuration tools.

ORCL =

  (DESCRIPTION =

    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.1)(PORT = 1521))

    (CONNECT_DATA =

      (SERVER = DEDICATED)

      (SERVICE_NAME = orcl)

    )

  )