Student retention over consecutive months. The idea was to compute each student's longest uninterrupted streak of monthly activity (i.e., attending at least one class per month), and then group the student count by length of these streaks. It clearly required advanced use of window functions like row_number, lead/lag, and cumulative logic.
Qu'est-ce qu'un data analyst Senior comparé à un data analyst junior?
explain you experience in tableau and its use case
How do you scale LLM models?
Tell us about a time where you had to cross functionally partner to achieve a goal
SQL PowerBI Tableau and Python
How will you handle day by day activity
Tell us about your past experiences
what is beta .what are the financial ratio and much more accounting questions
How I work with diverse teams?
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