When to do calculations
around this issue Store all single details for each item, as you will
usually need them later (for statistical/information purposes or any other
reasons). You have to make sure that you always follow the same calculation
logic to get the total sales
Date : October 24 2020, 11:12 AM , By : user3848904
How do I flag unread items of an RSS Feed?
around this issue Despite being optional, most RSS feeds provide a 'guid'
element for each item, which is a string that uniquely identifies it. If
the feed you're parsing provides such element, you can save the already
processed items by storing the
Date : October 19 2020, 11:12 AM , By : Utkarsh G