配置PLSQL远程连接数据库

一.本地安装了Oracle数据库

进入Oracle安装目录，如

二.本地未安装Oracle数据库

1.去Oracle官网下载instant client-basic包，http://www.oracle.com/technetwork/topics/winsoft-085727.html；然后解压到磁盘"D:\instantclient_12_2"

2

3.打开编辑tnsnames.ora文件

ORCL =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.3)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
    )
  )

EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
    )
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
    )
  )

HOST修改为你需要连接的ip地址，注意SERVICE_NAME的值为远程数据库的名称。

4.配置环境变量

新建环境变量

变量名：TNS_ADMIN

变量值：tnsnames.ora文件的安装目录，如“D:\instantclient_12_2\network\admin”

新建环境变量

变量名：NLS_LANG

变量值：SIMPLIFIED CHINESE_CHINA.ZHS16GBK