问题解决：用Oracle驱动来访问Oracle数据库时，所在程序的文件夹，名字的最后不能为quot;)quot;,原来是程序所在的目录有括号导
ORA-06413 Connection not open.
Cause: Unable to establish connection.
Action: Use diagnostic procedures to ascertain exact problem
错误描述： 用Oracle的连接工具里可以连接，在控制台用sqlplus是可以连接的,用Delphi 7.0开发的测试连接程序测试也可以连接，可是现在运行应用程序就是死活报“ORA-06413:连接未打开错误” 。
问题解决：用Oracle驱动来访问Oracle数据库时，所在程序的文件夹，名字的最后不能为")",原来是程序所在的目录有括号导致的,否则死活报“连接未打开”的ORACLE异常。
Session failure solution
How to set ppt widescreen
Can Douyin sparks be lit again if they have been off for more than three days?
Why does vue.js report an error?
What to do if your IP address is attacked
The difference between WeChat service account and official account
msdn official website entrance
The difference between fprintf and printf
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
