title: File and Database multiple configuration for log4net
body: <p>I have Web API that needs to write log data, both to a file and to the database.
  Is it possible to configure such a setup? I am trying to understand <a href="http://logging.apache.org/log4net/release/manual/repositories.html" rel="nofollow">ILoggerRepository</a> but I am confused. 
  Can someone give me the some tips on how to configure it and how to use it in application?</p>