Aggregate Functions in SQL

  • By Aniket Kulkarni
  • February 27, 2023
  • SQL
SQL Functions

Aggregate Functions in SQL 

This blog will discuss the following aggregate functions in SQL.

 

  • MIN()
  • MAX()
  • SUM()
  • AVG()
  • COUNT()

 

  1. MIN() Function : 

 

MIN() Function returns the smallest value from the selected column.

 

Syntax : 

 

SELECT MIN(ColumnName)

FROM TableName

WHERE (Condition) ;

 

Example : 

 

SELECT MIN(POPULATION) AS MIN_POPULATION

FROM COUNTRY ;

 

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  1. MAX() Function : 

 

MAX() Function returns the largest value from the selected column.

 

Syntax : 

 

SELECT MAX(ColumnName)

FROM TableName

WHERE (Condition) ;

 

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Example : 

 

SELECT MAX(POPULATION) AS MAX_POPULATION

FROM COUNTRY ;

  1. SUM() Function : 

 

SUM() Function returns the sum of numeric values of  the selected column.

 

Syntax : 

 

SELECT SUM(ColumnName)

FROM TableName

WHERE (Condition) ;

 

 

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Example : 

 

SELECT SUM(POPULATION) AS SUM_OF_POPULATION

FROM COUNTRY ;

 

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  1. AVG() Function : 

 

AVG() Function returns the average of numeric values of  the selected column.

 

Syntax : 

 

SELECT AVG(ColumnName)

FROM TableName

WHERE (Condition) ;

 

Example : 

 

SELECT AVG(POPULATION) AS AVG_OF_POPULATION

FROM COUNTRY ;

 

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Registration Link: Click Here!

 

 

  1. COUNT()  Function : 

 

COUNT() Function returns the count of numeric values of  the selected column.

 

Syntax : 

 

SELECT COUNT(ColumnName)

FROM TableName

WHERE (Condition) ;

 

Example : 

 

SELECT COUNT(POPULATION) AS COUNT_OF_POPULATION

FROM COUNTRY ;

 

Author:-

Aniket Kulkarni

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