Coach note
Interviewers ask this kind of question to surface how you think, not what you remember. The strongest answers are specific, calmly told, and end on what changed.
SQL · Window functions
Given an events table with event_type and user_id, write a query that returns users whose first event was 'signup' and last event was 'churn'.
Type your answer
0of ~220 wordsAbout a minute spoken
Voice isn’t supported in this browser — type your answer in the box.
Create a free account to get more critiques.
Your answer appears here as you speak.