How to perform calculations using aggregate functions in SQL?
To perform calculations using aggregate functions in SQL, start by identifying the aggregate function required for the calculation, such as SUM, COUNT, AVG, MIN, or MAX. Then, specify the column or expression to be used in the calculation within the parentheses of the function. It is common to include a GROUP BY clause to group the results based on one or more columns. This allows for calculations to be performed on subsets of data. Additionally, the HAVING clause can be used to filter the results after the aggregation has taken place. By understanding and utilizing aggregate functions effectively, it becomes possible to retrieve useful insights and perform calculations on large datasets in SQL.
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