Quiz on SQL Window Functions
SQL Window Functions allow you to perform calculations across rows related to the current row, without collapsing the result set. Unlike aggregate functions that return one result per group, window functions return a value for each row, making them essential for analytics, reporting, and trend analysis.
Summary
SQL Window Functions provide advanced capabilities to perform calculations across rows, such as ranking, cumulative totals, and comparisons—without grouping or collapsing the data. Mastering OVER(), PARTITION BY, and frame definitions is crucial for data analytics and reporting.
