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How can we select records from a table if the absolute value of the difference between two values is greater than a certain number?
We can use MySQL absolute value i.e. ABS() function to select records from a table if the absolute value of the difference between two values is greater than a certain number. We are using the data from ‘Marks’ table to demonstrate it for example.
Example
mysql> Select * from studentmarks where abs(Hindi-English)>10; +--------+-------+---------+------+---------+-----------+ | Name | Hindi | English | Math | Physics | Chemistry | +--------+-------+---------+------+---------+-----------+ | Gaurav | 75 | 86 | 95 | 69 | 85 | | Rahul | 74 | 85 | 97 | 69 | 86 | | Mohit | 73 | 87 | 89 | 69 | 86 | +--------+-------+---------+------+---------+-----------+ 3 rows in set (0.00 sec)
The above result set has only those records for which the absolute value of the difference between two subjects, English and Hindi is greater than 10.
Updated on: 30-Jul-2019
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