04/09/2026 10:44 am
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How do you handle many-to-many relationships?
Many-to-many relationships require careful modeling because the same value can appear multiple times on both sides. I usually avoid creating a direct many-to-many relationship when possible and instead use a bridge (mapping) table containing unique keys to connect the two tables.
I also check the filter direction and test measures to make sure filters propagate as expected. Using a proper star schema with dimension tables and a bridge table generally makes the model more predictable and easier to maintain.
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