Loyalty Group Order Milestones :Determine the Earliest Order Date and First Customer for Each Loyalty Tier Intermediate

Track the first order date for each customer loyalty tier.

The merchants guild wants to find the first order placed by customers in each loyalty status group. Write a query to find the first order date for each group along with the first customer.
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This mirrors customer analytics where businesses track the first purchase date per loyalty or membership level to understand engagement timing.

You’ll practice organizing data by customer segments and identifying the earliest record within each group using analytical logic.

This problem is labeled as Intermediate. It assumes you’ve written a few window function queries before, but you don’t need to be an expert. Use the hints and explanations if you get stuck — they’re there to help you think through the logic.

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