Example
Add one year to a date, then return the date:
sql
SELECT DATEADD(year, 1, '2017/08/25') AS DateAdd;
Definition and Usage
The DATEADD() function adds a time/date interval to a date and then returns the date.
Syntax
text
DATEADD(interval, number, date)
Parameter Values
| Parameter | Description |
|---|---|
| interval | Required. The time/date interval to add. Can be one of the following values: year, yyyy, yy = Year quarter, qq, q = Quarter month, mm, m = month dayofyear, dy, y = Day of the year day, dd, d = Day week, ww, wk = Week weekday, dw, w = Weekday hour, hh = hour minute, mi, n = Minute second, ss, s = Second millisecond, ms = Millisecond |
| number | Required. The number of interval to add to date. Can be positive (to get dates in the future) or negative (to get dates in the past) |
| date | Required. The date that will be modified |
Technical Details
| Works in: | SQL Server (starting with 2008), Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse |
|---|
More Examples
Example
Add two months to a date, then return the date:
sql
SELECT DATEADD(month, 2, '2017/08/25') AS DateAdd;
Example
Subtract two months from a date, then return the date:
sql
SELECT DATEADD(month, -2, '2017/08/25') AS DateAdd;
Example
Add 18 years to the date in the BirthDate column, then return the date:
sql
SELECT LastName,
BirthDate, DATEADD(year, 18, BirthDate) AS DateAdd FROM Employees;