Data Analyst · SQL · Mid-level · Theory

You need to get each user's most recent order, and some users have several orders with the same timestamp. How would you write the query, and which function would you choose?

~4 min by voice

How to approach it

This checks whether the candidate knows window functions and understands how ROW_NUMBER, RANK and DENSE_RANK behave on tied values. It also matters whether they can make the result deterministic and filter on the window correctly.

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sql window functions

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Answer by voice

The interviewer will ask this question and listen. Think out loud and ask for a hint if you need one. When you're done, pause or tap “That's my answer”. In about a minute, your score and the points you covered show up here.

Best with headphones · ~4 min