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# MySQL | AVG method

schedule Aug 10, 2023
Last updated
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MySQL
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MySQL's `AVG(~)` aggregate function returns the average value of the provided numeric input / column.

# Parameters

1. `input` | `numeric`

The numeric column(s) on which the `AVG(~)` function should compute the average for.

# Sample table - Students

student_id

fname

lname

day_enrolled

age

1

Sky

Towner

2015-12-03

17

stowner1

2

Ben

Davis

2016-04-20

19

bdavis2

3

Travis

Apple

2018-08-14

18

tapple3

4

Arthur

David

2016-04-01

16

5

Benjamin

Town

2014-01-01

17

btown5

The above sample table can be created using the code here.

# Examples

Returning the average age of students:

``` SELECT AVG(age) AS "Average Age"FROM students; +-------------+| Average Age |+-------------+| 17.4000 |+-------------+1 row in set (0.00 sec) ```

Filter for only students older than average age:

``` SELECT *FROM studentsWHERE age > (SELECT AVG(age) FROM students); +------------+--------+-------+--------------+------+----------+| student_id | fname | lname | day_enrolled | age | username |+------------+--------+-------+--------------+------+----------+| 2 | Ben | Davis | 2016-04-20 | 19 | bdavis2 || 3 | Travis | Apple | 2018-08-14 | 18 | tapple3 |+------------+--------+-------+--------------+------+----------+2 rows in set (0.01 sec) ```
Edited by 0 others
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