MySQL TIMESTAMPADD function is one of the MySQL Date Functions, used to add the user-specified intervals to a given date or DateTime. Let us see how to use this MySQL TIMESTAMP ADD function to add intervals to a given date expression with an example.
MySQL TIMESTAMPADD Syntax
The basic syntax of the TIMESTAMPADD() Function in MySQL is as shown below:
TIMESTAMPADD(Unit, INTERVAL_expression, DateTime_expression);
- DateTime: Accepts either DateTime value or date.
- INTERVAL_Expression: You have to specify the Value that you want to add to the TIMESTAMP.
- Unit: Accepts values from Microsecond to Year
MySQL TIMESTAMPADD function Example 1
The below shown queries help you understand the use of this MySQL TIMESTAMP ADD function. Here, First, we are adding 111222 Microseconds to 2019-01-31 date. Next, we added 30 Seconds to date. Within the third statement, we added 25 Minutes to the given Date (2019-01-31).
SELECT TIMESTAMPADD(MICROSECOND, 111222, '2019-01-31');
SELECT TIMESTAMPADD(SECOND, 59, '2019-01-31');
SELECT TIMESTAMPADD(MINUTE, 25, '2019-01-31');
TIP: I suggest you refer to the Date Function article in MySQL to understand the Units after the Interval.
MySQL TIMESTAMPADD Function Example 2
In this example, First, we are adding 48 Hours. Next, we added 48 weeks to a given Date expression. Within the third statement of MySQL TIMESTAMPADD function, we added 14 Years.
SELECT TIMESTAMPADD(HOUR, 48, '2019-01-31');
SELECT TIMESTAMPADD(WEEK, 48, '2019-01-31');
SELECT TIMESTAMPADD(YEAR, 14, '2019-01-31');
MySQL TIMESTAMPADD Example 3
In this example, we show you how to use this MySQL Timestamp add function on a table data. Here, we are adding 100 Hours to the HireDate column and retuning the Timestamp.
SELECT EmpID,
FirstName,
LastName,
Occupation,
YearlyIncome,
Sales,
HireDate,
TIMESTAMPADD(HOUR, 100, HireDate) AS 'TIMESTAMPADD Example'
FROM `MySQL Tutorial`.customer;
