Window Functions for Visit Timing | Dataford Interview Questions
Window Functions for Visit Timing
HardWindow FunctionsLag/LeadRanking
Problem
How would you use window functions like ROW_NUMBER(), RANK(), and LEAD()/LAG() to calculate running totals or time between patient visits at Dana-Farber Cancer Institute?
Problem
How would you use window functions like ROW_NUMBER(), RANK(), and LEAD()/LAG() to calculate running totals or time between patient visits at Dana-Farber Cancer Institute?
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