plsql連接遠程數據

首先找到C:\develop_tools\instantclient_12_1 的 tnsnames.ora 文件  對裏面內容進行修改 一個完整的內容如下 app_DB =   (DESCRIPTION =     (ADDRESS_LIST =       (ADDRESS = (PROTOCOL = TCP)(HOST = 19.160.37.54)(PORT = 1521))     )

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