How to use the MySQL INTERVAL() function on a table's columns?

#We can use the INTERVAL() function on a column of a table by providing the first parameter as the name of the column. In this case, all values ​​in the column are compared with the values ​​given as other parameters of the INTERVAL() function and the result set is provided based on the comparison. To understand it, use data from Employee table as shown below -

mysql> Select* from employee568;
+----+--------+--------+
| ID | Name   | Salary |
+----+--------+--------+
| 1  | Gaurav | 50000  |
| 2  | Rahul  | 20000  |
| 3  | Advik  | 25000  |
| 4  | Aarav  | 65000  |
| 5  | Ram    | 20000  |
| 6  | Mohan  | 30000  |
| 7  | Aryan  |  NULL  |
| 8  | Vinay  |  NULL  |
+----+--------+--------+
8 rows in set (0.00 sec)

mysql> Select * from employee WHERE INTERVAL(ID,4) > 0;
+----+-------+--------+
| ID | Name  | Salary |
+----+-------+--------+
| 4  | Aarav | 65000  |
| 5  | Ram   | 20000  |
| 6  | Mohan | 30000  |
| 7  | Aryan |  NULL  |
| 8  | Vinay |  NULL  |
+----+-------+--------+
5 rows in set (0.00 sec)

The above result set has 5 rows with ID = 4 to 8 because INTERVAL function has value greater than 0 for these rows.

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