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http://www.oracle.com/technetwork/cn/database/features/instant-client/index-092699-zhs.html
在官网下载对应的 Instant Client 包，解到 C:\ 。
运行以下批处理，即可。
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v ORACLE_HOME /t reg_sz /d "C:\instantclient_11_2" /f reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v TNS_ADMIN /t reg_sz /d "C:\instantclient_11_2" /f reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v NLS_LANG /t reg_sz /d "SIMPLIFIED CHINESE_CHINA.ZHS16GBK" /f REM tnsnames.ora echo ORALOCAL = >C:\instantclient_11_2\tnsnames.ora echo (DESCRIPTION = >>C:\instantclient_11_2\tnsnames.ora echo (ADDRESS_LIST = >>C:\instantclient_11_2\tnsnames.ora echo (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521)) >>C:\instantclient_11_2\tnsnames.ora echo ) >>C:\instantclient_11_2\tnsnames.ora echo (CONNECT_DATA = >>C:\instantclient_11_2\tnsnames.ora echo (SERVER = DEDICATED) >>C:\instantclient_11_2\tnsnames.ora echo (SERVICE_NAME = ORCL) >>C:\instantclient_11_2\tnsnames.ora echo ) >>C:\instantclient_11_2\tnsnames.ora echo ) >>C:\instantclient_11_2\tnsnames.ora
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原文地址：http://www.cnblogs.com/Tty725/p/4412731.html
