What are the aggregate functions supported by salesforce SOQL?

Hi saurabh,

Use aggregate functions in a GROUP BY clause in SOQL queries to generate reports for analysis. Aggregate functions include AVG(), COUNT(), MIN(), MAX(), SUM(), and more.
You can also use aggregate functions without using a GROUP BY clause. For example, you could use the AVG() aggregate function to find the average Amount for all your opportunities.

For further Detail Refer to this link.

Thanks.