How to extract Year, Month, Day, Hour, Minute and Seconds from a DateTime

DATEPART ( datepart , date ) where
datepart - specifies the part of the date to return. For eg: year, month and so on
date - is the datetime or smalldatetime value

QUERY

SELECT
DATEPART(year, GETDATE()) as 'Year',
DATEPART(month,GETDATE()) as 'Month',
DATEPART(day,GETDATE()) as 'Day',
DATEPART(week,GETDATE()) as 'Week',
DATEPART(hour,GETDATE()) as 'Hour',
DATEPART(minute,GETDATE()) as 'Minute',
DATEPART(second,GETDATE()) as 'Seconds',
DATEPART(millisecond,GETDATE()) as 'MilliSeconds'

Note: When using a smalldatetime, only information up to the 'minute' gets displayed. Seconds and milliseconds are always 0.

Standard Date Formats
Date Format	Standard	SQL Statement	Sample Output
Mon DD YYYY 1 HH:MIAM (or PM)	Default	SELECT CONVERT(VARCHAR(20), GETDATE(), 100)	Jan 1 2005 1:29PM 1
MM/DD/YY	USA	SELECT CONVERT(VARCHAR(8), GETDATE(), 1) AS [MM/DD/YY]	11/23/98
MM/DD/YYYY	USA	SELECT CONVERT(VARCHAR(10), GETDATE(), 101) AS [MM/DD/YYYY]	11/23/1998
YY.MM.DD	ANSI	SELECT CONVERT(VARCHAR(8), GETDATE(), 2) AS [YY.MM.DD]	72.01.01
YYYY.MM.DD	ANSI	SELECT CONVERT(VARCHAR(10), GETDATE(), 102) AS [YYYY.MM.DD]	1972.01.01
DD/MM/YY	British/French	SELECT CONVERT(VARCHAR(8), GETDATE(), 3) AS [DD/MM/YY]	19/02/72
DD/MM/YYYY	British/French	SELECT CONVERT(VARCHAR(10), GETDATE(), 103) AS [DD/MM/YYYY]	19/02/1972
DD.MM.YY	German	SELECT CONVERT(VARCHAR(8), GETDATE(), 4) AS [DD.MM.YY]	25.12.05
DD.MM.YYYY	German	SELECT CONVERT(VARCHAR(10), GETDATE(), 104) AS [DD.MM.YYYY]	25.12.2005
DD-MM-YY	Italian	SELECT CONVERT(VARCHAR(8), GETDATE(), 5) AS [DD-MM-YY]	24-01-98
DD-MM-YYYY	Italian	SELECT CONVERT(VARCHAR(10), GETDATE(), 105) AS [DD-MM-YYYY]	24-01-1998
DD Mon YY 1	-	SELECT CONVERT(VARCHAR(9), GETDATE(), 6) AS [DD MON YY]	04 Jul 06 1
DD Mon YYYY 1	-	SELECT CONVERT(VARCHAR(11), GETDATE(), 106) AS [DD MON YYYY]	04 Jul 2006 1
Mon DD, YY 1	-	SELECT CONVERT(VARCHAR(10), GETDATE(), 7) AS [Mon DD, YY]	Jan 24, 98 1
Mon DD, YYYY 1	-	SELECT CONVERT(VARCHAR(12), GETDATE(), 107) AS [Mon DD, YYYY]	Jan 24, 1998 1
HH:MM:SS	-	SELECT CONVERT(VARCHAR(8), GETDATE(), 108)	03:24:53
Mon DD YYYY HH:MI:SS:MMMAM (or PM) 1	Default + milliseconds	SELECT CONVERT(VARCHAR(26), GETDATE(), 109)	Apr 28 2006 12:32:29:253PM 1
MM-DD-YY	USA	SELECT CONVERT(VARCHAR(8), GETDATE(), 10) AS [MM-DD-YY]	01-01-06
MM-DD-YYYY	USA	SELECT CONVERT(VARCHAR(10), GETDATE(), 110) AS [MM-DD-YYYY]	01-01-2006
YY/MM/DD	-	SELECT CONVERT(VARCHAR(8), GETDATE(), 11) AS [YY/MM/DD]	98/11/23
YYYY/MM/DD	-	SELECT CONVERT(VARCHAR(10), GETDATE(), 111) AS [YYYY/MM/DD]	1998/11/23
YYMMDD	ISO	SELECT CONVERT(VARCHAR(6), GETDATE(), 12) AS [YYMMDD]	980124
YYYYMMDD	ISO	SELECT CONVERT(VARCHAR(8), GETDATE(), 112) AS [YYYYMMDD]	19980124
DD Mon YYYY HH:MM:SS:MMM(24h) 1	Europe default + milliseconds	SELECT CONVERT(VARCHAR(24), GETDATE(), 113)	28 Apr 2006 00:34:55:190 1
HH:MI:SS:MMM(24H)	-	SELECT CONVERT(VARCHAR(12), GETDATE(), 114) AS [HH:MI:SS:MMM(24H)]	11:34:23:013
YYYY-MM-DD HH:MI:SS(24h)	ODBC Canonical	SELECT CONVERT(VARCHAR(19), GETDATE(), 120)	1972-01-01 13:42:24
YYYY-MM-DD HH:MI:SS.MMM(24h)	ODBC Canonical (with milliseconds)	SELECT CONVERT(VARCHAR(23), GETDATE(), 121)	1972-02-19 06:35:24.489
YYYY-MM-DDTHH:MM:SS:MMM	ISO8601	SELECT CONVERT(VARCHAR(23), GETDATE(), 126)	1998-11-23T11:25:43:250
DD Mon YYYY HH:MI:SS:MMMAM 1	Kuwaiti	SELECT CONVERT(VARCHAR(26), GETDATE(), 130)	28 Apr 2006 12:39:32:429AM 1
DD/MM/YYYY HH:MI:SS:MMMAM	Kuwaiti	SELECT CONVERT(VARCHAR(25), GETDATE(), 131)	28/04/2006 12:39:32:429AM

Here are some more date formats that does not come standard in SQL Server as part of the CONVERT function.

Extended Date Formats
Date Format	SQL Statement	Sample Output
YY-MM-DD	SELECT SUBSTRING(CONVERT(VARCHAR(10), GETDATE(), 120), 3, 8) AS [YY-MM-DD] SELECT REPLACE(CONVERT(VARCHAR(8), GETDATE(), 11), '/', '-') AS [YY-MM-DD]	99-01-24
YYYY-MM-DD	SELECT CONVERT(VARCHAR(10), GETDATE(), 120) AS [YYYY-MM-DD] SELECT REPLACE(CONVERT(VARCHAR(10), GETDATE(), 111), '/', '-') AS [YYYY-MM-DD]	1999-01-24
MM/YY	SELECT RIGHT(CONVERT(VARCHAR(8), GETDATE(), 3), 5) AS [MM/YY] SELECT SUBSTRING(CONVERT(VARCHAR(8), GETDATE(), 3), 4, 5) AS [MM/YY]	08/99
MM/YYYY	SELECT RIGHT(CONVERT(VARCHAR(10), GETDATE(), 103), 7) AS [MM/YYYY]	12/2005
YY/MM	SELECT CONVERT(VARCHAR(5), GETDATE(), 11) AS [YY/MM]	99/08
YYYY/MM	SELECT CONVERT(VARCHAR(7), GETDATE(), 111) AS [YYYY/MM]	2005/12
Month DD, YYYY 1	SELECT DATENAME(MM, GETDATE()) + RIGHT(CONVERT(VARCHAR(12), GETDATE(), 107), 9) AS [Month DD, YYYY]	July 04, 2006 1
Mon YYYY 1	SELECT SUBSTRING(CONVERT(VARCHAR(11), GETDATE(), 113), 4, 8) AS [Mon YYYY]	Apr 2006 1
Month YYYY 1	SELECT DATENAME(MM, GETDATE()) + ' ' + CAST(YEAR(GETDATE()) AS VARCHAR(4)) AS [Month YYYY]	February 2006 1
DD Month 1	SELECT CAST(DAY(GETDATE()) AS VARCHAR(2)) + ' ' + DATENAME(MM, GETDATE()) AS [DD Month]	11 September 1
Month DD 1	SELECT DATENAME(MM, GETDATE()) + ' ' + CAST(DAY(GETDATE()) AS VARCHAR(2)) AS [Month DD]	September 11 1
DD Month YY 1	SELECT CAST(DAY(GETDATE()) AS VARCHAR(2)) + ' ' + DATENAME(MM, GETDATE()) + ' ' + RIGHT(CAST(YEAR(GETDATE()) AS VARCHAR(4)), 2) AS [DD Month YY]	19 February 72 1
DD Month YYYY 1	SELECT CAST(DAY(GETDATE()) AS VARCHAR(2)) + ' ' + DATENAME(MM, GETDATE()) + ' ' + CAST(YEAR(GETDATE()) AS VARCHAR(4)) AS [DD Month YYYY]	11 September 2002 1
MM-YY	SELECT RIGHT(CONVERT(VARCHAR(8), GETDATE(), 5), 5) AS [MM-YY] SELECT SUBSTRING(CONVERT(VARCHAR(8), GETDATE(), 5), 4, 5) AS [MM-YY]	12/92
MM-YYYY	SELECT RIGHT(CONVERT(VARCHAR(10), GETDATE(), 105), 7) AS [MM-YYYY]	05-2006
YY-MM	SELECT RIGHT(CONVERT(VARCHAR(7), GETDATE(), 120), 5) AS [YY-MM] SELECT SUBSTRING(CONVERT(VARCHAR(10), GETDATE(), 120), 3, 5) AS [YY-MM]	92/12
YYYY-MM	SELECT CONVERT(VARCHAR(7), GETDATE(), 120) AS [YYYY-MM]	2006-05
MMDDYY	SELECT REPLACE(CONVERT(VARCHAR(10), GETDATE(), 1), '/', '') AS [MMDDYY]	122506
MMDDYYYY	SELECT REPLACE(CONVERT(VARCHAR(10), GETDATE(), 101), '/', '') AS [MMDDYYYY]	12252006
DDMMYY	SELECT REPLACE(CONVERT(VARCHAR(10), GETDATE(), 3), '/', '') AS [DDMMYY]	240702
DDMMYYYY	SELECT REPLACE(CONVERT(VARCHAR(10), GETDATE(), 103), '/', '') AS [DDMMYYYY]	24072002
Mon-YY 1	SELECT REPLACE(RIGHT(CONVERT(VARCHAR(9), GETDATE(), 6), 6), ' ', '-') AS [Mon-YY]	Sep-02 1
Mon-YYYY 1	SELECT REPLACE(RIGHT(CONVERT(VARCHAR(11), GETDATE(), 106), 8), ' ', '-') AS [Mon-YYYY]	Sep-2002 1
DD-Mon-YY 1	SELECT REPLACE(CONVERT(VARCHAR(9), GETDATE(), 6), ' ', '-') AS [DD-Mon-YY]	25-Dec-05 1
DD-Mon-YYYY 1	SELECT REPLACE(CONVERT(VARCHAR(11), GETDATE(), 106), ' ', '-') AS [DD-Mon-YYYY]	25-Dec-2005 1

¹ To make the month name in upper case, simply use the UPPER string function.

Credit : http://www.sql-server-helper.com/tips/date-formats.aspx

Keyword : Me

Me

The Me keyword provides a way to refer to the specific instance of a class or structure in which the code is currently executing. Me behaves like either an object variable or a structure variable referring to the current instance. Using Me is particularly useful for passing information about the currently executing instance of a class or structure to a procedure in another class, structure, or module. For example, suppose you have the following procedure in a module:

Sub ChangeFormColor(ByVal FormName As Form)
Randomize()
FormName.BackColor = Color.FromArgb(Rnd() * 256, Rnd() * 256, Rnd() * 256)
End Sub

You can call this procedure and pass the current instance of the Form class as an argument using the following statement:

ChangeFormColor(Me)

The Me keyword is used in these contexts:

ที่มา : http://msdn.microsoft.com/en-us/library/7e58sbke(VS.71).aspx

>>Visual Basic Language Keywords here<<

DateTimePicker : แสดงเวลาย้อนหลัง

DateTimePicker1.Value = Date.Today.AddDays(-5) 'แสดงวันย้อนหลังไป 5 วัน
DateTimePicker1.Value = Date.Today.AddHours(-5)
DateTimePicker1.Value = Date.Today.AddMilliseconds(-5)
DateTimePicker1.Value = Date.Today.AddMinutes(-5)
DateTimePicker1.Value = Date.Today.AddMonths(-5) 'แสดงเดือนย้อนหลังไป 5 เดือน
DateTimePicker1.Value = Date.Today.AddSeconds(-5)
DateTimePicker1.Value = Date.Today.AddTicks(-5)
DateTimePicker1.Value = Date.Today.AddYears(-5) 'แสดงปีย้อนหลังไป 5 ปี