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How to find the minimum and maximum values in a single MySQL Query?
To find the minimum and maximum values in a single query, use MySQL UNION. Let us first create a table −
mysql> create table DemoTable ( Price int ); Query OK, 0 rows affected (0.57 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values(88); Query OK, 1 row affected (0.30 sec) mysql> insert into DemoTable values(100); Query OK, 1 row affected (0.22 sec) mysql> insert into DemoTable values(98); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values(120); Query OK, 1 row affected (0.12 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+-------+ | Price | +-------+ | 88 | | 100 | | 98 | | 120 | +-------+ 4 rows in set (0.00 sec)
Following is the query to find the minimum and maximum values in a single MySQL Query −
mysql> select Price from DemoTable where Price=(select min(Price) from DemoTable) UNION select Price from DemoTable where Price=(select max(Price) from DemoTable);
This will produce the following output −
+-------+ | Price | +-------+ | 88 | | 120 | +-------+ 2 rows in set (0.00 sec)
Updated on: 27-Sep-2019
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