Learn to use Django aggregates to calculate sums, averages, counts, and extra. Discover examples, superior methods, and greatest practices for optimization.
In databases, aggregation refers to performing calculations on a number of rows of information and returning a single outcome. Frequent examples embrace summing up numbers, calculating a mean, or counting information. Aggregation is usually utilized in reporting, analytics, and dashboards.
- Counting the full variety of customers or gadgets in an e-commerce platform
- Calculating the common score for a product
- Summing the full income from orders
- Discovering the best or lowest rating in a contest
Django’s ORM simplifies working with aggregates via built-in features like Sum
, Avg
, Rely
, Max
, and Min
. These features permit you to carry out database-level calculations with out writing uncooked SQL queries.