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How to select data in MySQL where a field has a minimum value?
To select data where a field has min value, you can use aggregate function min(). The syntax is as follows.
SELECT *FROM yourTableName WHERE yourColumnName=(SELECT MIN(yourColumnName) FROM yourTableName);
To understand the above syntax, let us create a table. The query to create a table is as follows.
mysql> create table MinValueDemo -> ( -> ProductId int, -> ProductName varchar(100), -> ProductPrice int -> ); Query OK, 0 rows affected (0.77 sec)
Insert some records in the table using insert command. The query is as follows.
mysql> insert into MinValueDemo values(1,'product-1',4500); Query OK, 1 row affected (0.14 sec) mysql> insert into MinValueDemo values(2,'product-2',4340); Query OK, 1 row affected (0.22 sec) mysql> insert into MinValueDemo values(3,'product-3',4110); Query OK, 1 row affected (0.18 sec) mysql> insert into MinValueDemo values(4,'product-4',4344); Query OK, 1 row affected (0.16 sec) mysql> insert into MinValueDemo values(5,'product-5',4103); Query OK, 1 row affected (0.13 sec)
Display all records from the table using select statement. The query is as follows.
mysql> select *from MinValueDemo;
The following is the output.
+-----------+-------------+--------------+ | ProductId | ProductName | ProductPrice | +-----------+-------------+--------------+ | 1 | product-1 | 4500 | | 2 | product-2 | 4340 | | 3 | product-3 | 4110 | | 4 | product-4 | 4344 | | 5 | product-5 | 4103 | +-----------+-------------+--------------+ 5 rows in set (0.00 sec)
Here is the query to select data where the ‘ProductPrice’ has the minimum value using aggregate function MIN() from MySQL.
mysql> select *from MinValueDemo -> where ProductPrice=(select min(ProductPrice) from MinValueDemo);
The following is the output.
+-----------+-------------+--------------+ | ProductId | ProductName | ProductPrice | +-----------+-------------+--------------+ | 5 | product-5 | 4103 | +-----------+-------------+--------------+ 1 row in set (0.08 sec)
Updated on: 30-Jul-2019
7K+ Views
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