What does avg mean in mysql

In MySQL, the AVG function calculates the average of a set of numeric values. The syntax is AVG(expression), where expression is the numeric expression to be averaged. It can be used to calculate average price, average score, average quantity, etc.

The meaning of AVG function in MySQL

In MySQL, the AVG function is an aggregate function, used Used to calculate the average of a set of numeric values. It adds a set of numeric values ​​and then divides them by the number of numeric values ​​to get their average.

Grammar

The syntax of the AVG function is as follows:

<code class="sql">AVG(expression)</code>

Among them:

• expression is one or more numeric expressions to be averaged.

Usage

The AVG function can be used in a variety of situations, including:

• Calculate the average price of a set of sales records
• Calculate the average score of a group of students' grades
• Calculate the average number of orders in a group

Example

Below Example to calculate the average price of all orders in a sales record:

<code class="sql">SELECT AVG(price) FROM sales_orders;</code>

Result

The AVG function will return the average price of all orders in the table, for example 100.00.

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