MIN Function in SQL Server: Tips and Examples

MIN Function in SQL Server is easier to understand when the core ideas are paired with practical examples. The sections below explain the topic clearly, highlight useful steps, and point out details that can prevent common errors.

The article will explore and show you how to use the MIN function in SQL Server to find the smallest value in a set.

Describe

The MIN function in SQL Server is an aggregate function that returns the smallest value in a group.

Syntax

To use the MIN function in SQL Server, we use the following syntax:

 SELECT MIN(cot) 
 FROM bang 
 [WHERE dieukien];

Parameters :

cot: column or calculated value, the expression you want to find the smallest value
state: the table used to retrieve the record. Must have at least 1 table in the FROM clause.
dieukien: optional. Conditions that the record must meet to be selected.

Note :

The MIN function can be used in later versions of SQL Server: SQL Server 2017, SQL Server 2016, SQL Server 2014, SQL Server 2012, SQL Server 2008 R2, SQL Server 2008, and SQL Server 2005.

As an example,

Take a look and explore some examples of MIN functions in SQL Server.

Suppose, we have the following data table:

MIN Function in SQL Server example image 1

Example 1: Find the minimum number of posts in the table

 SELECT MIN(Sobai) 
 FROM Tipsmake 
 WHERE Sobai > 120; 
 
 Result: 122

In this example we have the minimum number of articles in a column in the Tipsmake table, which must be greater than 120.

Example 2: Use GROUP BY

the example below finds the smallest value of all records related to a large section, you will do the following:

 SELECT Chuyenmuclon, MIN(Sobai) AS 'So bai it nhat' 
 FROM Tipsmake 
 GROUP BY Chuyenmuclon; 
 
 Result: 
 Chuyenmuclon So bai it nhat 
 Laptrinh 101 
 Mang xa hoi 152 
 Trinh duyet web 94

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