The DATEPART function on SQL Server

The DATEPART function.

This function will take a date/time expression and return a single part of the date, such as hour, minute, month, day, etc. The syntax for using DATEPART is:

Quote

DATEPART(datepart, date)

Where the datepart is one of the following:

• 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.

let say the date right now is 23-03-2012

if we want to display the day, use :

DECLARE @date DATETIME
SET @date = '2012-03-23 10:31 PM'
SELECT DATEPART(dd,@date)
--- the query will return = 23
---------------------------------------

if we want to display the Month, use :

DECLARE @date DATETIME
SET @date = '2012-03-23 10:31 PM'
SELECT DATEPART(mm,@date)
--- the query will return = 03
---------------------------------------

if we want to display the Year, use :

DECLARE @date DATETIME
SET @date = '2012-03-23 10:31 PM'
SELECT DATPART(yyyy,@date)
--- the query will return = 2012
ETC

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