Install ODAC after installing the. NETFramework causes the application to not find the. NETFramework Data Provider Solution (3 types)

background : Install the ODAC after installing the framework.

The problem occurs: This can cause application problems such as

cause analysis of the problem: After studying, we will register some information with the. NETFramework in the process of ODAC, which is written in the machine file as shown in

　　　　　　　　　

After installing ODAC, some basic information about ODAC is written to machine this file. Not specific, everyone open this file search Oracle will be able to see.

Solution : There are three kinds

First: Reinstall ODAC (Fool-style procedure)

Second: Overwrite the configuration file under the C:\Windows\Microsoft.NET\Framework\v4.0.30319\Config directory Machine.config (this is to back up this file first)

Third: Copy bat file oracleforframework.bat 　　　　　 to.. \app\xx\product\11.2.0\client_1 directory, double-click the. bat file to

To solve this problem!