Wayfair
Foundations Track · Easy · 15 min
Device View Mix
Wayfair wants a trend check for device view mix. Count how many views came from laptop devices and how many came from mobile devices. Treat phone and tablet ...
Company labels are directional practice context, not official interview guidance.
Objective
Practice query basics through a Wayfair-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.
Wayfair wants a trend check for device view mix. Count how many views came from laptop devices and how many came from mobile devices. Treat phone and tablet as mobile. Return laptop_views and mobile_views.
watch_events
| view_id | user_id | device_type | |
|---|---|---|---|
| 1 | 10 | laptop | 2024-02-01 |
| 2 | 11 | phone | 2024-02-01 |
| 3 | 12 | tablet | 2024-02-02 |
| 4 | 13 | laptop | 2024-02-03 |
| 5 | 14 | tv | 2024-02-04 |
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