Purchase payloads contain an items array, each item an object with sku and qty
A medium SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- medium
Interview Prompt
Purchase payloads contain an items array, each item an object with sku and qty. Return event_id, the number of items in the order, and the sku of the FIRST item, for each purchase event, ordered by event_id. Columns: event_id, n_items, first_sku.
How This Interview Works
- Read the vague prompt (just like a real interview)
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