In my daily use of SQL queries, aggregate functions are used to perform calculations on a set of values, returning a single value. Common examples include SUM, AVG, COUNT, MIN, and MAX.

To calculate the average of a column using SQL, you can use the AVG() function. Here's an example of how you can do it: ```sql SELECT AVG(column_name) AS average_value FROM table_name; ``` Replace ...

Aggregate functions in SQL are used to perform calculations on a set of values and return a single result. These functions operate on a group of rows and produce a single value as output. Some common ...

Learn about the XQuery function avg() that returns the average of a specified sequence of numbers. All the types of the atomized values that are passed to avg() have to be a subtype of exactly one of ...