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First-Order Item Then Churn

Medium
MediumSQL & Data ManipulationSubqueriesDate FunctionsRetention
Asked 1w ago|
Mcdonald'S Global Office In India
Mcdonald'S Global Office In India

Problem

Write a SQL query to identify customers who purchased a specific menu item in their first order but have not returned to make a purchase in the last 30 days.

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Mcdonald'S Global Office In India Data Scientist Interview Questions
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