If you're building a RSS reader, you'd probably want to process the data and store all relevant fields as columns for storage. Not much point to storing the XML.
Entries in feeds should have a guid you can use to detect updates/entries you have already seen. RSS readers typically don't delete entries that disappeared from the feed - entries disappear from feeds to limit their size.
You can get live updates to some RSS feeds using WebSub.
Entries in feeds should have a guid you can use to detect updates/entries you have already seen. RSS readers typically don't delete entries that disappeared from the feed - entries disappear from feeds to limit their size.
You can get live updates to some RSS feeds using WebSub.