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I’m doing something different but this is an easier to understand example. Think of the votes here. I add these votes to a separate table and log information about them like by who, when and so on. Would you also add a field to the main table that simply counts the number of votes or is this bad practice.
This is called “denormalization” and is considered bad practice unless you get a significant performance boost when you denormalize.
The biggest issue with this, however, is concurrency. What happens if two people vote on the poll and they both try to increment the
VoteCountcolumn?Search denormalization on here and in Google, there has been plenty of discussion on this topic. Find what fits your exact situation best, although, from the looks of it, denormalization would be premature optimization in your situation.