SQL - SQL Server DATEADD() Function

August 6, 2024

Categories: Reference, SQL Reference, SQL Server Functions

Quick Reference

The SQL Server DATEADD() function adds a time/date interval to a date and then returns the date.

The following adds 3 days to the specified date.

SELECT DATEADD(day, 3, '2023/04/15') AS 'New Date';

Output

New Date
2023-04-18 00:00:00.000

Syntax

DATE_ADD(date, INTERVAL value addunit)

Parameters

Parameter	Description
interval	The time/date interval to add (required) 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	The number of interval to add to date (positive or negative) (required)
date	The date that will be modified (required)

SQL Notes:

Any work being done to modify the structure of a database or delete tables or the the database itself should only be done after making a recent backup

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