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Given a table of sales data, use window functions to calculate a running total.

SQLmedium0.2 min readPremium
Frequency
Low
Asked at 1 company
Category
487
questions in SQL
Difficulty Split
130E|271M|86H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
American Express
Key Concepts Tested
partitionwindow
Expert AnswerPremium
45 wordsInterview-ready
SELECT date, amount, SUM(amount) OVER (ORDER BY date) AS running_total FROM sales. **Default frame**: RANGE UNBOUNDED PRECEDING = cumulative. **Partitioned**: SUM(amount) OVER (PARTITION BY region ORDER BY date). **Determinism**: If date has duplicates, RANGE treats peers together; use ROWS for row-by-row....
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