Hello,
Unfortunately, you cannot capture JDBC traffic using a .NET application.
The only way to capture JDBC traffic using DevTest is through a java application with the DevTest agent installed.
However, there are several limitations to this approach.
If you would like to pursue this path, please open a support ticket and we can talk in detail.
A better option is CA Test Data Manager. It specializes creating testing data using production data, data profiling and/or masking engines.