1.第一次安装toad,启用后报

Error: No valid Oracle clients found. You need at least one 64-bit client properly configured.

解决方案:

http://www.oracle.com/technetwork/topics/winx64soft-089540.html

下载oracle client 64位的

然后解压缩,把这个路径添加到系统环境变量PATH。重启toad即可解决问题。