SQL Server DATEPART() Function

Definition and Usage

The DATEPART() function is used to return individual parts of a date/time, such as year, month, day, hour, minute, etc.

Syntax

DATEPART(datepart,date)

date The parameter is a valid date expression.datepart The parameter can be one of the following values:

datepart Abbreviations
Years yy, yyyy
Quarters qq, q
Months mm, m
Day of the Year dy, y
Days dd, d
Weeks wk, ww
Weeks dw, w
Hours hh
Minutes mi, n
Seconds ss, s
Milliseconds ms
Microseconds mcs
Nanoseconds ns

Example

Assuming we have the following 'Orders' table:

OrderId ProductName OrderDate
1 'Computer' 2008-12-29 16:25:46.635

We use the following SELECT statement:

SELECT DATEPART(yyyy,OrderDate) AS OrderYear,
DATEPART(mm,OrderDate) AS OrderMonth,
DATEPART(dd,OrderDate) AS OrderDay
FROM Orders
WHERE OrderId=1

Result:

OrderYear OrderMonth OrderDay
2008 12 29