MySQL DATEDIFF function is one of the Date Functions, which is useful to find the difference between two dates and returns the number of days. Let us see how to use this MySQL Datediff function to find the difference between dates with example.
MySQL DATEDIFF Syntax
The basic syntax of the DATEDIFF Function in MySQL is as shown below:
The DATEDIFF function subtracts Date Expression2 from Expression1 (Expression1 – Expression2) and returns the value. It won’t consider the Time value into consideration.
MySQL DATEDIFF function Example
The below-shown queries help you understand the use of this MySQL Date Difference function. Here, we are finding the difference in the total number of days between Date and time expression.
SELECT DATEDIFF('2019-02-28', '2019-01-01');
SELECT DATEDIFF('2019-02-28', '2019-12-31');
SELECT DATEDIFF('2019-02-28 12:11:22', '2019-12-31');
SELECT NOW(), DATEDIFF(NOW(), '2018-12-31');
SELECT CURDATE(), DATEDIFF(CURDATE(), '2017-12-31');
SELECT CURRENT_TIMESTAMP, DATEDIFF(CURRENT_TIMESTAMP, '2018-01-31');
MySQL Date Difference Example 2
In this example, we show you how to use this MySQL Date Difference function on a table. Here, we are finding the difference between the current date and Employees Hire date using the datediff function.
SELECT EmpID, FirstName, LastName, Occupation, YearlyIncome, Sales, HireDate, DATEDIFF(NOW(), HireDate) AS 'DATEDIFF Example' FROM `MySQL Tutorial`.customer;