Is a Unique Key necessary?

[LiquidSword]

Is a Unique Key necessary for every table in the data model? My model doesn't but the calculations in the dashboard seems fine.

[BrunPierre · Accepted solution]

While it's not mandatory for every table in a data model to have a unique key, there are situations where ensuring each record's uniqueness is essential. This helps prevent duplicates and maintains the model's integrity by enforcing referential integrity in establishing relationships.