pl/sql连接远程服务器

1.oracle提供了instantclient，下载instantclient-basic-win32-10.2.0.4.zip，将包解压存放到本地，如：D:\STUDY\instantclient_10_2。

下载地址：http://pan.baidu.com/s/1hqxGmKs

2.在该目录下，新建sqlnet.ora和tnsnames.ora两个文件：

sqlnet.ora:

SQLNET.AUTHENTICATION_SERVICES= (NTS)   

NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)

tnsnames.ora:

orcl =   

(DESCRIPTION =      

  (ADDRESS_LIST =         

    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.146.143 )(PORT = 1521))      

  )       

  (CONNECT_DATA =        

    (SERVICE_NAME = orcl )      

  )

)

3.配置环境变量：

变量名                       变量值

TNS_ADMIN            D:\STUDY\instantclient_10_2

4.打开PL/SQL，Tools-->Preferences，配置Connection的Oracle Home和OCI library，如下图所示

6.重新启动PL/SQL，登录，OK!

如果pl/sql出现乱码，请参考：http://www.cnblogs.com/myCodingSky/p/3681931.html