Foundations Track · Easy · 15 min
Frequent Support Callers
LinkedIn wants a backlog scan for frequent support callers. Return the distinct policy_holder_id values for members who made at least 3 calls. Sort by policy...
Company labels are directional practice context, not official interview guidance.
Objective
Practice query basics through a LinkedIn-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.
LinkedIn wants a backlog scan for frequent support callers. Return the distinct policy_holder_id values for members who made at least 3 calls. Sort by policy_holder_id.
callers
| case_id | policy_holder_id |
|---|---|
| 1 | 100 |
| 2 | 100 |
| 3 | 100 |
| 4 | 101 |
| 5 | 101 |
| 6 | 102 |
| 7 | 102 |
| 8 | 102 |
| 9 | 102 |
SQL workspace
Run queries against the protected question data, then submit once the result shape looks right.
Sign in to run SQL
Create a free account or sign in before running queries against protected question data.