Use COUNT, SUM, AVG, MIN, MAX correctly in your queries

Understand how these functions collapse multiple rows into single summary values

Handle NULL values properly in aggregate calculations

Combine aggregates with WHERE clauses for filtered reports

Use aggregates with GROUP BY for grouped summaries

Read and interpret aggregate results in business contexts

Apply aggregates to answer real business questions

Use COUNT, SUM, AVG, MIN, MAX correctly in your queries

Understand how these functions collapse multiple rows into single summary values

Handle NULL values properly in aggregate calculations

Combine aggregates with WHERE clauses for filtered reports

Use aggregates with GROUP BY for grouped summaries

Read and interpret aggregate results in business contexts

Apply aggregates to answer real business questions