Top 50 SQL & Data Manipulation Interview Questions
The most frequently asked SQL & Data Manipulation questions across all roles and companies, ranked by real interview frequency. Updated daily.
Use joins, a CTE, and aggregation to find the top five products by completed-order revenue.
Itlize GlobalPPriority Technology Holdings, LLCMeasure qualifying Paramount+ users by completed watch minutes, title diversity, and engagement level.
ParamountReturn each unique value from a SQL column, including a single NULL when present.
WixRetrieve each unique category value from a PostgreSQL table, including NULL, in a defined order.
WixWrite a SQL query to find the average number of flights per crew member over the last year at Atlas Air. Use the provided crew member and flight assignmen...
Atlas AirRank the five investments with the highest average historical return using joined investment and performance data.
eVestmentWrite a SQL query to find the top five most viewed shows on Hulu in the last month. Treat “last month” as the previous calendar month relative to the curr...
HuluExplain how you used PostgreSQL SQL queries and aggregations to extract analysis-ready data from a single dataset.
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