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Finding the minimum and maximum value from a string with numbers separated by hyphen in MySQL?
Use MIN() function along with SUBSTRING() for minimum, whereas MAX() for maximum. Let us first create a table −
mysql> create table DemoTable -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> Value varchar(100) -> ); Query OK, 0 rows affected (0.76 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable(Value) values('10-20');
Query OK, 1 row affected (0.18 sec)
mysql> insert into DemoTable(Value) values('200-100');
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable(Value) values('780-235');
Query OK, 1 row affected (0.29 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+----+---------+ | Id | Value | +----+---------+ | 1 | 10-20 | | 2 | 200-100 | | 3 | 780-235 | +----+---------+ 3 rows in set (0.00 sec)
Following is the query to find the MIN() and MAX() value from the number substrings separated from a string with hyphen −
mysql> select min(SUBSTRING_INDEX(Value, '-', 1)), -> max(SUBSTRING_INDEX(Value, '-', -1)) -> from DemoTable;
This will produce the following output −
+-------------------------------------+--------------------------------------+ | min(SUBSTRING_INDEX(Value, '-', 1)) | max(SUBSTRING_INDEX(Value, '-', -1)) | +-------------------------------------+--------------------------------------+ | 10 | 235 | +-------------------------------------+--------------------------------------+ 1 row in set (0.04 sec)
Updated on: 30-Jul-2019
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