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SQL MIN() function

MIN() function

The aggregate function SQL MIN() is used to find the minimum value or lowest value of a column or expression. This function is useful to determine the smallest of all selected values of a column.

Syntax:

MIN ([ALL | DISTINCT] expression )

MySQL, PostgreSQL, and SQL Server

All the above platforms support the SQL syntax of MIN.

DB2 and Oracle Syntax:

MIN ([ALL | DISTINCT] expression ) OVER (window_clause)

Parameters:

Name Description
ALL Applies to all values.
DISTINCT Consider each unique value. DISTINCT is not meaningful with MIN function.
expression Expression made up of a single constant, variable, scalar function, or column name or any combination of arithmetic, bitwise, and string operators. MIN can be used with numeric, character, and datetime columns, but not with bit columns. Aggregate functions and subqueries are not permitted.

Syntax diagram - MIN() function

Syntax diagram - MIN Function

SQL MIN() on specific column

Sample table: orders


To get the minimum or lowest value of 'ord_amout' from the orders table, the following SQL statement can be used:

SELECT MIN (ord_amount)
FROM orders;

Output:

MIN(ORD_AMOUNT)
---------------
            500

SQL MIN() with addition of two columns

Sample table: customer


To get minimum or lowest values of (opening_amt+receive_amt) from the customer table, the following SQL statement can be used:

SELECT MIN (opening_amt + receive_amt) 
FROM customer;

Output:

MIN(OPENING_AMT+RECEIVE_AMT)
----------------------------
                        8000

SQL MIN() on date value

Sample table: orders


To get minimum or smallest value of 'ord_date' from the 'orders' table, the following SQL statement can be used:

SELECT MIN (ord_date) AS "Min Date" 
FROM orders;

Output:

Min Date
---------
08-JAN-08

All Aggregate Functions

SQL Aggregate Functions, slide presentation

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