Select CONVERT(varchar(100), GETDATE(), 0): 05 16 2006 10:57AM
Select CONVERT(varchar(100), GETDATE(), 1): 05/16/06
Select CONVERT(varchar(100), GETDATE(), 2): 06.05.16
Select CONVERT(varchar(100), GETDATE(), 3): 16/05/06
Select CONVERT(varchar(100), GETDATE(), 4): 16.05.06
Select CONVERT(varchar(100), GETDATE(), 5): 16-05-06
Select CONVERT(varchar(100), GETDATE(), 6): 16 05 06
Select CONVERT(varchar(100), GETDATE(), 7): 05 16, 06
Select CONVERT(varchar(100), GETDATE(), 8): 10:57:46
Select CONVERT(varchar(100), GETDATE(), 9): 05 16 2006 10:57:46:827AM
Select CONVERT(varchar(100), GETDATE(), 10): 05-16-06
Select CONVERT(varchar(100), GETDATE(), 11): 06/05/16
Select CONVERT(varchar(100), GETDATE(), 12): 060516
Select CONVERT(varchar(100), GETDATE(), 13): 16 05 2006 10:57:46:937
Select CONVERT(varchar(100), GETDATE(), 14): 10:57:46:967
Select CONVERT(varchar(100), GETDATE(), 20): 2006-05-16 10:57:47
Select CONVERT(varchar(100), GETDATE(), 21): 2006-05-16 10:57:47.157
Select CONVERT(varchar(100), GETDATE(), 22): 05/16/06 10:57:47 AM
Select CONVERT(varchar(100), GETDATE(), 23): 2006-05-16
Select CONVERT(varchar(100), GETDATE(), 24): 10:57:47
Select CONVERT(varchar(100), GETDATE(), 25): 2006-05-16 10:57:47.250
Select CONVERT(varchar(100), GETDATE(), 100): 05 16 2006 10:57AM
Select CONVERT(varchar(100), GETDATE(), 101): 05/16/2006
Select CONVERT(varchar(100), GETDATE(), 102): 2006.05.16
Select CONVERT(varchar(100), GETDATE(), 103): 16/05/2006
Select CONVERT(varchar(100), GETDATE(), 104): 16.05.2006
Select CONVERT(varchar(100), GETDATE(), 105): 16-05-2006
Select CONVERT(varchar(100), GETDATE(), 106): 16 05 2006
Select CONVERT(varchar(100), GETDATE(), 107): 05 16, 2006
Select CONVERT(varchar(100), GETDATE(), 108): 10:57:49
Select CONVERT(varchar(100), GETDATE(), 109): 05 16 2006 10:57:49:437AM
Select CONVERT(varchar(100), GETDATE(), 110): 05-16-2006
Select CONVERT(varchar(100), GETDATE(), 111): 2006/05/16
Select CONVERT(varchar(100), GETDATE(), 112): 20060516
Select CONVERT(varchar(100), GETDATE(), 113): 16 05 2006 10:57:49:513
Select CONVERT(varchar(100), GETDATE(), 114): 10:57:49:547
Select CONVERT(varchar(100), GETDATE(), 120): 2006-05-16 10:57:49
Select CONVERT(varchar(100), GETDATE(), 121): 2006-05-16 10:57:49.700
Select CONVERT(varchar(100), GETDATE(), 126): 2006-05-16T10:57:49.827
Select CONVERT(varchar(100), GETDATE(), 130): 18 ???? ?????? 1427 10:57:49:907AM
Select CONVERT(varchar(100), GETDATE(), 131): 18/04/1427 10:57:49:920AM


常用：
Select CONVERT(varchar(100), GETDATE(), 8): 10:57:46
Select CONVERT(varchar(100), GETDATE(), 24): 10:57:47
Select CONVERT(varchar(100), GETDATE(), 108): 10:57:49
Select CONVERT(varchar(100), GETDATE(), 12): 060516
Select CONVERT(varchar(100), GETDATE(), 23): 2006-05-16  

Execute the following T-SQL scripts in Microsoft SQL Server Manangement Studio Query Editor to demonstrate T-SQL convert and cast functions in transforming string date, string time & string datetime data to datetime data type. Other datetime manipulation examples are presented as well.

-- Microsoft SQL Server string to date conversion - datetime string format sql server

-- MSSQL string to datetime conversion - convert char to date sql server

-- Subtract 100 from style number (format) for yy instead yyyy (or ccyy with century)

SELECT convert(datetime, 'Oct 23 2012 11:01AM', 100) -- mon dd yyyy hh:mmAM (or PM)

SELECT convert(datetime, 'Oct 23 2012 11:01AM') -- 2012-10-23 11:01:00.000

-- Without century (yy) string date conversion - convert string to datetime

SELECT convert(datetime, 'Oct 23 12 11:01AM',     0) -- mon dd yy hh:mmAM (or PM)

SELECT convert(datetime, 'Oct 23 12 11:01AM') -- 2012-10-23 11:01:00.000

-- Convert string to datetime sql - convert string to date sql - sql dates format

-- T-SQL convert string to datetime - SQL Server convert string to date 

SELECT convert(datetime, '10/23/2016',          101) -- mm/dd/yyyy

SELECT convert(datetime, '2016.10.23',          102) -- yyyy.mm.dd

SELECT convert(datetime, '23/10/2016',          103) -- dd/mm/yyyy

SELECT convert(datetime, '23.10.2016',          104) -- dd.mm.yyyy

SELECT convert(datetime, '23-10-2016',          105) -- dd-mm-yyyy

-- mon types are nondeterministic conversions, dependent on language setting

SELECT convert(datetime, '23 OCT 2016',         106) -- dd mon yyyy

SELECT convert(datetime, 'Oct 23, 2016',        107) -- mon dd, yyyy

-- 2016-10-23 00:00:00.000

SELECT convert(datetime, '20:10:44',            108) -- hh:mm:ss

-- 1900-01-01 20:10:44.000

-- mon dd yyyy hh:mm:ss:mmmAM (or PM) - sql time format

SELECT convert(datetime, 'Oct 23 2016 11:02:44:013AM', 109)

-- 2016-10-23 11:02:44.013

SELECT convert(datetime, '10-23-2016',          110) -- mm-dd-yyyy

SELECT convert(datetime, '2016/10/23',          111) -- yyyy/mm/dd

SELECT convert(datetime, '20161023',            112) -- yyyymmdd

-- 2016-10-23 00:00:00.000

SELECT convert(datetime, '23 Oct 2016 11:02:07:577', 113) -- dd mon yyyy hh:mm:ss:mmm

-- 2016-10-23 11:02:07.577

SELECT convert(datetime, '20:10:25:300',             114) -- hh:mm:ss:mmm(24h)

-- 1900-01-01 20:10:25.300

SELECT convert(datetime, '2016-10-23 20:44:11',      120) -- yyyy-mm-dd hh:mm:ss(24h)

-- 2016-10-23 20:44:11.000

SELECT convert(datetime, '2016-10-23 20:44:11.500',  121) -- yyyy-mm-dd hh:mm:ss.mmm

-- 2016-10-23 20:44:11.500

SELECT convert(datetime, '2008-10-23T18:52:47.513',  126) -- yyyy-mm-ddThh:mm:ss.mmm

-- 2008-10-23 18:52:47.513

-- Convert DDMMYYYY format to datetime

SELECT convert(datetime, STUFF(STUFF('31012016',3,0,'-'),6,0,'-'), 105)

-- 2016-01-31 00:00:00.000

-- SQL string to datetime conversion without century - some exceptions

SELECT convert(datetime, '10/23/16',          1)                  -- mm/dd/yy

SELECT convert(datetime, '16.10.23',          2)                  -- yy.mm.dd

SELECT convert(datetime, '23/10/16',          3)                  -- dd/mm/yy

SELECT convert(datetime, '23.10.16',          4)                  -- dd.mm.yy

SELECT convert(datetime, '23-10-16',          5)                  -- dd-mm-yy

SELECT convert(datetime, '23 OCT 16',         6)                  -- dd mon yy

SELECT convert(datetime, 'Oct 23, 16',        7)                  -- mon dd, yy

SELECT convert(datetime, '20:10:44',          8)                  -- hh:mm:ss

SELECT convert(datetime, 'Oct 23 16 11:02:44:013AM', 9)

SELECT convert(datetime, '10-23-16',          10)                 -- mm-dd-yy

SELECT convert(datetime, '16/10/23',          11)                 -- yy/mm/dd

SELECT convert(datetime, '161023',            12)                 -- yymmdd

SELECT convert(datetime, '23 Oct 16 11:02:07:577', 13)        -- dd mon yy hh:mm:ss:mmm

SELECT convert(datetime, '20:10:25:300',        14)           -- hh:mm:ss:mmm(24h)

SELECT convert(datetime, '2016-10-23 20:44:11',20)            -- yyyy-mm-dd hh:mm:ss(24h)

SELECT convert(datetime, '2016-10-23 20:44:11.500', 21)       -- yyyy-mm-dd hh:mm:ss.mmm

------------

-- SQL Datetime Data Type: Combine date & time string into datetime - sql hh mm ss

-- String to datetime - mssql datetime - sql convert date - sql concatenate string

DECLARE @DateTimeValue varchar(32), @DateValue char(8), @TimeValue char(6)

SELECT      @DateValue = '20120718',

            @TimeValue = '211920'

SELECT @DateTimeValue =

            convert(varchar, convert(datetime, @DateValue), 111)

            + ' ' + substring(@TimeValue, 1, 2)

            + ':' + substring(@TimeValue, 3, 2)

            + ':' + substring(@TimeValue, 5, 2)

SELECT

      DateInput = @DateValue,

      TimeInput = @TimeValue,

      DateTimeOutput = @DateTimeValue;

http://www.blogjava.net/sealyu/archive/2009/11/05/301216.html