Top 50 calculations Interview Questions
The most frequently asked calculations questions across all roles and companies, ranked by real interview frequency. Updated daily.
Calculate three-record rolling account balance averages using PostgreSQL window functions.
Calculate daily delivery averages and a trailing seven-day moving average using PostgreSQL window functions.
Gopuff
ZomatoCompute joined metrics across multiple tables with filters and aggregations.
Relativity
WaymoCalculate daily production and its rolling seven-day average, including zero-output calendar dates.
Nevada StaffingoonsemiCalculate daily impressions per active user and its 7-day rolling average using PostgreSQL aggregations and date-based windows.
Activision
Samsung AdsCalculate monthly churn as companies terminated during the month divided by companies active at the month's start.
IntuitCalculate daily equipment usage and its 30-day rolling average while handling multiple readings and NULL values.
Micron TechnologyEEcolabCompare the latest available month's sales with the preceding month's sales using PostgreSQL date aggregation.
LG Electronics North America
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