How to Use the DATEADD() Function in SQL Server: A Complete Guide
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Table of Content:
Syntax:
DATEADD (datepart, NumberToAdd, date)
DATEADD (datepart, NumberToAdd, date) - Returns the DateTime, after adding specified NumberToAdd, to the datepart specified of the given date.
| DatePart | Abbreviations |
|---|---|
| year | yy, yyyy |
| quarter | qq, q |
| month | mm, m |
| dayofyear | dy, y |
| day | dd, d |
| week | wk, ww |
| weekday | dw |
| hour | hh |
| minute | mi, n |
| second | ss, s |
| millisecond | ms |
| microsecond | mcs |
| nanosecond | ns |
| TZoffset | tz |
| ISO_WEEK | isowk, isoww |
Code:
Select DateAdd(DAY, 20, '2012-08-30 19:45:31.793') Select DateAdd(DAY, -20, '2012-08-30 19:45:31.793')
Output:
The above code will produce the following result-
2012-09-19 19:45:31.793 2012-08-10 19:45:31.793