Stripe
Interview Core Track · Medium · 25 min
Average Minutes to First Reply
Support leadership wants to compare response speed across inboxes. For conversations created in May 2024, return each inbox_name and the average number of mi...
Company labels are directional practice context, not official interview guidance.
Objective
Practice query basics through a Stripe-tagged business scenario.
Approach
Use this track to improve speed, edge-case handling, and accuracy under timed conditions.
Company context
Company labels are directional practice context, not official interview guidance.
Support leadership wants to compare response speed across inboxes. For conversations created in May 2024, return each inbox_name and the average number of minutes until the first reply, rounded to two decimals. Sort by inbox_name.
conversations
| conversation_id | inbox_name | |
|---|---|---|
| 1 | Payments | 2024-05-01 09:00:00 |
| 2 | Payments | 2024-05-02 10:30:00 |
| 3 | Risk | 2024-05-03 08:15:00 |
| 4 | Risk | 2024-05-04 12:00:00 |
| 5 | Billing | 2024-05-05 14:00:00 |
reply_events
| reply_id | conversation_id | replied_at |
|---|---|---|
| 11 | 1 | 2024-05-01 09:12:00 |
| 12 | 1 | 2024-05-01 09:25:00 |
| 13 | 2 | 2024-05-02 10:50:00 |
| 14 | 3 | 2024-05-03 08:45:00 |
| 15 | 4 | 2024-05-04 12:40:00 |
| 16 | 5 | 2024-05-05 14:10:00 |
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