配置PL/SQL Developer连接远程数据库

1.找到plsql的安装目录，新建目录C:\Program Files\PLSQL Developer\instantclient\network\admin，新建配置文件tnsnames.ora，内容： 172.16.210.40 =   (DESCRIPTION =     (ADDRESS_LIST =       (ADDRESS = (PROTOCOL = TCP)(HOST = 172

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