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How to find absolute difference between two numbers in MySQL?
To get the difference between two number in MySQL, let us first create a demo table
mysql> create table findDifferenceDemo -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> FirstNumber float, -> SecondNumber float -> ); Query OK, 0 rows affected (0.60 sec)
Insert some records in the table using insert command. The query is as follows −
mysql> insert into findDifferenceDemo(FirstNumber,SecondNumber) values(4.2,2.3); Query OK, 1 row affected (0.20 sec) mysql> insert into findDifferenceDemo(FirstNumber,SecondNumber) values(23.4,5.6); Query OK, 1 row affected (0.14 sec) mysql> insert into findDifferenceDemo(FirstNumber,SecondNumber) values(5.8,34.56); Query OK, 1 row affected (0.16 sec) mysql> insert into findDifferenceDemo(FirstNumber,SecondNumber) values(7.8,7.2); Query OK, 1 row affected (0.16 sec) mysql> insert into findDifferenceDemo(FirstNumber,SecondNumber) values(12.8,10.2); 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 findDifferenceDemo;
The following is the output
+----+-------------+--------------+ | Id | FirstNumber | SecondNumber | +----+-------------+--------------+ | 1 | 4.2 | 2.3 | | 2 | 23.4 | 5.6 | | 3 | 5.8 | 34.56 | | 4 | 7.8 | 7.2 | | 5 | 12.8 | 10.2 | +----+-------------+--------------+ 5 rows in set (0.00 sec)
The following is the query to find absolute difference between two numbers in MySQL
mysql> SELECT ABS(FirstNumber - secondNumber) AS diff -> from findDifferenceDemo -> order by diff desc;
The following is the output
+--------------------+ | diff | +--------------------+ | 28.760001182556152 | | 17.799999713897705 | | 2.6000003814697266 | | 1.8999998569488525 | | 0.6000003814697266 | +--------------------+ 5 rows in set (0.00 sec)
Updated on: 30-Jul-2019
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