First-Touch Attribution Revenue
Problem
**[Asked at Google]**
The first marketing channel that touched a user gets full credit for their conversion revenue.
Return `channel` and `attributed_revenue`, ordered by revenue descending.
Tables
Example rows — the live problem includes the full dataset.
touches
| touch_id | user_id | channel | touch_date |
|---|
conversions
| conversion_id | user_id | revenue |
|---|
Expected output
Your answer should return 3 rows with the columns channel, attributed_revenue.
Starter code (SQL)
SELECT *
FROM touches;Solve this SQL question free
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Solution & explanation
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