ML Engineer MasterClass (April) | 6 seats left

Slowly Changing Dimensions

Slowly Changing Dimensions

Slowly Changing Dimensions

Your regional revenue report looks fine. The numbers add up. But the West region is mysteriously outperforming its targets, and the East region is underperforming. Nobody can explain it. Then someone notices: three top sales reps transferred from West to East six months ago, and whoever loaded that dimension update just ran a simple UPDATE. Every historical sale those reps ever made now shows up under East. The data didn't lie...

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