A walkthrough of how to implement dynamic filtering in SQL for product listings and dashboards, where available filter options update based on user selections. Two database design approaches are compared: the traditional normalized schema (separate tables per attribute) and the Entity-Attribute-Value (EAV) model. The traditional approach offers simpler queries, better performance, and type safety but requires schema changes for new attributes. The EAV model provides flexibility without schema changes but at the cost of query complexity and performance. Guidance is provided on when to choose each approach.
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