I have a project that have some different transactions (balance top up and buy a product).
How should I design the database? I can only think of 2 solutions, but I think both of them is still not a good solution.
- Separate table for each transaction type
- More normal (?) but I have to query from both table for task such as report
- Make one transaction table but leave some columns null for each transaction type.
- Easier for report query, but I don’t really like the idea of leaving a column null for the different transactions type
Which one is better? Or is there any other solution better than this?
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