Using an External Cache Provider using RSS Data Provider
This CData ADO.NET Provider for RSS connection string can be used for connections to RSS / Atom.
RSSBus drivers have the ability to cache data in a separate database such as SQL Server or MySQL instead of in a local file using the following syntax:
Cache Connection='Connection String to Cache Database';
Above is just an example to show how it works. It can be used both with "Auto Cache" and with "Cached Data Only / Offline Mode". Read more about RSSBus Cache in this article.