Foundations Track · Medium · 25 min
2078 From Microsoft To Google
WITH employers_cte AS ( SELECT *, LEAD(employer) OVER(PARTITION BY user_id ORDER BY start_date) as next_employer FROM linkedin_users ) SELECT COUNT(DISTINCT ...
Company labels are directional practice context, not official interview guidance.
Objective
Practice filtering through a Google-tagged business scenario.
Approach
Use this track to lock in clean query structure, basic filtering logic, and confidence with grouped output.
Company context
Company labels are directional practice context, not official interview guidance.
WITH employers_cte AS ( SELECT *, LEAD(employer) OVER(PARTITION BY user_id ORDER BY start_date) as next_employer FROM linkedin_users ) SELECT COUNT(DISTINCT user_id) AS employee_count FROM employers_cte WHERE employer='Microsoft' AND next_employer='Google'
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