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How to SELECT min and max value from the part of a table in MySQL?
To select min and max value from the part of a table in MySQL, use the following syntax −
select min(yourColumnName) as yourAliasName1,max(yourColumnName) as yourAliasName2 from (select yourColumnName from yourTableName limit yourLimitValue) tbl1;
Let us first create a table. Following is the query −
mysql> create table MinAndMaxValueDemo -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> Value int -> ); Query OK, 0 rows affected (0.52 sec)
Insert records in the table using insert command. Following is the query −
mysql> insert into MinAndMaxValueDemo(Value) values(10); Query OK, 1 row affected (0.16 sec) mysql> insert into MinAndMaxValueDemo(Value) values(100); Query OK, 1 row affected (0.11 sec) mysql> insert into MinAndMaxValueDemo(Value) values(50); Query OK, 1 row affected (0.13 sec) mysql> insert into MinAndMaxValueDemo(Value) values(40); Query OK, 1 row affected (0.12 sec)
Following is the query to display all records from the table using select statement −
mysql> select * from MinAndMaxValueDemo;
This will produce the following output −
+----+-------+ | Id | Value | +----+-------+ | 1 | 10 | | 2 | 100 | | 3 | 50 | | 4 | 40 | +----+-------+ 4 rows in set (0.00 sec)
Following is the query to select min and max value from the part of a table in MySQL −
mysql> select min(Value) as MinimumValue,max(Value) as MaximumValue from -> (select Value from MinAndMaxValueDemo limit 3) tbl1;
This will produce the following output −
+--------------+--------------+ | MinimumValue | MaximumValue | +--------------+--------------+ | 10 | 100 | +--------------+--------------+ 1 row in set (0.07 sec)
Updated on: 30-Jul-2019
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