Programming Tips: MS SQL Date time conversion examples

Wednesday, April 2, 2014

/* MSSQL Server string to date conversion - datetime string format sql server

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

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

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