• How to convert from string to datetime in sql server? Sealyu BlogJava


    How to convert from string to datetime in sql server? - Sealyu - BlogJava

    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;

    /*

    DateInput   TimeInput   DateTimeOutput

    20120718    211920      2012/07/18 21:19:20

    */

    -- SQL convert seconds to HH:MM:SS - sql times format - sql hh mm

    DECLARE  @Seconds INT

    SET @Seconds = 20000

    SELECT HH =  @Seconds / 3600,

           MM = (@Seconds%3600) / 60,

           SS = (@Seconds%60)

    GO

    /*

    HH    MM    SS

    5     33    20

    */
    ------------

    -- SQL Server 2008 convert datetime to date - sql yyyy mm dd

    SELECT TOP (3)

                OrderDate = CONVERT(date, OrderDate),

                Today = CONVERT(date, getdate())

    FROM AdventureWorks2008.Sales.SalesOrderHeader

    ORDER BY newid();

    /*          OrderDate   Today

                2003-07-09  2012-06-18

                2003-09-26  2012-06-18

                2004-02-15  2012-06-18 */

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

    -- SQL date yyyy mm dd - sqlserver yyyy mm dd - date format yyyymmdd

    SELECT CONVERT(VARCHAR(10), GETDATE(), 111) AS [YYYY/MM/DD]

    /*  YYYY/MM/DD

        2015/07/11    */

    SELECT CONVERT(VARCHAR(10), GETDATE(), 112) AS [YYYYMMDD]

    /*  YYYYMMDD

        20150711     */

    SELECT REPLACE(CONVERT(VARCHAR(10), GETDATE(), 111),'/',' ') AS [YYYY MM DD]

    /* YYYY MM DD

       2015 07 11    */

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

    -- SQL convert date string to datetime - time set to 00:00:00.000 or 12:00AM

    PRINT CONVERT(datetime,'07-10-2012',110) -- Jul 10 2012 12:00AM

    PRINT CONVERT(datetime,'2012/07/10',111) -- Jul 10 2012 12:00AM

    PRINT CONVERT(datetime,'20120710',  112) -- Jul 10 2012 12:00AM          

    ------------     

    -- String to date conversion - sql date yyyy mm dd - sql date formatting

    -- SQL Server cast string to date - sql convert date to datetime

    SELECT [Date] = CAST (@DateValue AS datetime)

    GO

    -- 2012-07-18 00:00:00.000

    -- SQL convert string date to different style - sql date string formatting

    SELECT CONVERT(varchar, CONVERT(datetime, '20140508'), 100)

    -- May  8 2014 12:00AM

    -- SQL Server convert date to integer

    DECLARE @Date datetime

    SET @Date = getdate()

    SELECT DateAsInteger = CAST (CONVERT(varchar,@Date,112) as INT)

    -- Result: 20161225

    -- SQL Server convert integer to datetime

    DECLARE @iDate int

    SET @iDate = 20151225

    SELECT IntegerToDatetime = CAST(convert(varchar,@iDate) as datetime)

    GO
    -- 2015-12-25 00:00:00.000

    -- Alternates: date-only datetime values

    -- SQL Server floor date - sql convert datetime

    SELECT [DATE-ONLY]=CONVERT(DATETIME, FLOOR(CONVERT(FLOAT, GETDATE())))

    SELECT [DATE-ONLY]=CONVERT(DATETIME, FLOOR(CONVERT(MONEY, GETDATE())))

    -- SQL Server cast string to datetime

    -- SQL Server datetime to string convert

    SELECT [DATE-ONLY]=CAST(CONVERT(varchar, GETDATE(), 101) AS DATETIME)

    -- SQL Server dateadd function - T-SQL datediff function

    -- SQL strip time from date - MSSQL strip time from datetime

    SELECT getdate() ,DATEADD(dd, DATEDIFF(dd, 0, getdate()), 0)

    -- Results: 2016-01-23 05:35:52.793 2016-01-23 00:00:00.000

    -- String date  - 10 bytes of storage

    SELECT [STRING DATE]=CONVERT(varchar, GETDATE(), 110)

    SELECT [STRING DATE]=CONVERT(varchar, CURRENT_TIMESTAMP, 110)

    -- Same results: 01-02-2012

    -- SQL Server cast datetime as string - sql datetime formatting

    SELECT stringDateTime=CAST (getdate() as varchar)

    --Result: Dec 29 2012  3:47AM

    ----------

    -- SQL date range between

    ----------

    -- SQL date range select - date range search

    -- T-SQL date range query - sql date ranges

    -- Count Sales Orders for 2003 OCT-NOV

    DECLARE  @StartDate DATETIME,  @EndDate DATETIME

    SET @StartDate = convert(DATETIME,'10/01/2003',101)

    SET @EndDate   = convert(DATETIME,'11/30/2003',101)

    SELECT @StartDate, @EndDate

    -- 2003-10-01 00:00:00.000  2003-11-30 00:00:00.000

    SELECT DATEADD(DAY,1,@EndDate),

    DATEADD(ms,-3,DATEADD(DAY,1,@EndDate))

    -- 2003-12-01 00:00:00.000  2003-11-30 23:59:59.997

    -- MSSQL date range select using >= and <

    SELECT [Sales Orders for 2003 OCT-NOV] = COUNT(* )

    FROM   Sales.SalesOrderHeader

    WHERE  OrderDate >= @StartDate

    AND OrderDate < DATEADD(DAY,1,@EndDate)

    /*

    Sales Orders for 2003 OCT-NOV

    3668

    */

    -- Equivalent date range query using BETWEEN comparison

    -- It requires a bit of trick programming

    SELECT [Sales Orders for 2003 OCT-NOV] = COUNT(* )

    FROM   Sales.SalesOrderHeader

    WHERE  OrderDate BETWEEN @StartDate AND DATEADD(ms,-3,DATEADD(DAY,1,@EndDate))

    -- 3668

    GO

    USE AdventureWorks;

    -- SQL between string dates

    SELECT POs=COUNT(*) FROM Purchasing.PurchaseOrderHeader

    WHERE OrderDate BETWEEN '20040201' AND '20040210'

    -- Result: 108

    -- BETWEEN is equivalent to >=...AND....<=

    SELECT POs=COUNT(*) FROM Purchasing.PurchaseOrderHeader

    WHERE OrderDate

    BETWEEN '2004-02-01 00:00:00.000' AND '2004-02-10  00:00:00.000'

    /*

    Orders with OrderDates

    '2004-02-10  00:00:01.000'  - 1 second after midnight (12:00AM)

    '2004-02-10  00:01:00.000'  - 1 minute after midnight

    '2004-02-10  01:00:00.000'  - 1 hour after midnight

    are not included in the two queries above.

    */

    -- To include the entire day of 2004-02-10 use:

    SELECT POs=COUNT(*) FROM Purchasing.PurchaseOrderHeader

    WHERE OrderDate >= '20040201' AND OrderDate < '20040211'

    ----------

    -- Date validation function ISDATE - returns 1 or 0

    -- SQL datetime functions

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

    DECLARE @StringDate varchar(32)

    SET @StringDate = '2011-03-15 18:50'

    IF EXISTS( SELECT * WHERE ISDATE(@StringDate) = 1)

    PRINT 'VALID DATE: ' + @StringDate

    ELSE

    PRINT 'INVALID DATE: ' + @StringDate

    GO

    -- Result: VALID DATE: 2011-03-15 18:50

    DECLARE @StringDate varchar(32)

    SET @StringDate = '20112-03-15 18:50'

    IF EXISTS( SELECT * WHERE ISDATE(@StringDate) = 1)

    PRINT 'VALID DATE: ' + @StringDate

    ELSE

    PRINT 'INVALID DATE: ' + @StringDate

    GO

    -- Result: INVALID DATE: 20112-03-15 18:50

    -- Selected named date styles
    ------------

    DECLARE @DateTimeValue varchar(32)

    -- US-Style

    SELECT @DateTimeValue = '10/23/2016'

    SELECT StringDate=@DateTimeValue,

    [US-Style] = CONVERT(datetime, @DatetimeValue)

    SELECT @DateTimeValue = '10/23/2016 23:01:05'

    SELECT StringDate = @DateTimeValue,

    [US-Style] = CONVERT(datetime, @DatetimeValue)

    -- UK-Style, British/French

    -- convert string to datetime sql

    -- sql convert string to datetime

    SELECT @DateTimeValue = '23/10/16 23:01:05'

    SELECT StringDate = @DateTimeValue,

    [UK-Style] = CONVERT(datetime, @DatetimeValue, 3)

    SELECT @DateTimeValue = '23/10/2016 04:01 PM'

    SELECT StringDate = @DateTimeValue,

    [UK-Style] = CONVERT(datetime, @DatetimeValue, 103)

    -- German-Style

    SELECT @DateTimeValue = '23.10.16 23:01:05'

    SELECT StringDate = @DateTimeValue,

    [German-Style] = CONVERT(datetime, @DatetimeValue, 4)

    SELECT @DateTimeValue = '23.10.2016 04:01 PM'

    SELECT StringDate = @DateTimeValue,

    [German-Style] = CONVERT(datetime, @DatetimeValue, 104)

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

    -- Double conversion to US-Style 107 with century: Oct 23, 2016

    SET @DateTimeValue='10/23/16'

    SELECT StringDate=@DateTimeValue,

    [US-Style] = CONVERT(varchar, CONVERT(datetime, @DateTimeValue),107)

    -- Using DATEFORMAT - UK-Style

    -- SQL dateformat

    SET @DateTimeValue='23/10/16'

    SET DATEFORMAT dmy

    SELECT StringDate=@DateTimeValue,

    [Date Time] = CONVERT(datetime, @DatetimeValue)

    -- Using DATEFORMAT - US-Style

    SET DATEFORMAT mdy

    -- DATEPART datetime function example

    -- SQL Server datetime functions

    SELECT * FROM Northwind.dbo.Orders

    WHERE

    DATEPART(YEAR, OrderDate) = '1996' AND

    DATEPART(MONTH,OrderDate) = '07' AND

    DATEPART(DAY, OrderDate) = '10'

    -- Alternate syntax for DATEPART example

    SELECT * FROM Northwind.dbo.Orders

    WHERE

    YEAR(OrderDate) = '1996' AND

    MONTH(OrderDate) = '07' AND

    DAY(OrderDate) = '10'

    GO

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

    -- Extract string date from text with PATINDEX pattern matching

    -- Apply sql server string to date conversion

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

    USE tempdb;

    go

    CREATE TABLE InsiderTransaction (

          InsiderTransactionID int identity primary key,

          TradeDate datetime,

          TradeMsg varchar(256),

          ModifiedDate datetime default (getdate())

    )

    go

    -- Populate table with dummy data

    INSERT InsiderTransaction (TradeMsg) VALUES(

    'INSIDER TRAN QABC Hammer, Bruce D. CSO 09-02-08 Buy 2,000 6.10')

    INSERT InsiderTransaction (TradeMsg) VALUES(

    'INSIDER TRAN QABC Schmidt, Steven CFO 08-25-08 Buy 2,500 6.70')

    INSERT InsiderTransaction (TradeMsg) VALUES(

    'INSIDER TRAN QABC  Hammer, Bruce D. CSO  08-20-08 Buy 3,000 8.59')

    INSERT InsiderTransaction (TradeMsg) VALUES(

    'INSIDER TRAN QABC Walters,  Jeff CTO 08-15-08  Sell 5,648 8.49')

    INSERT InsiderTransaction (TradeMsg) VALUES(

    'INSIDER TRAN  QABC  Walters, Jeff CTO   08-15-08 Option Execute 5,648 2.15')

    INSERT InsiderTransaction (TradeMsg) VALUES(

    'INSIDER TRAN QABC Hammer, Bruce D. CSO 07-31-08  Buy 5,000 8.05')

    INSERT InsiderTransaction (TradeMsg) VALUES(

    'INSIDER TRAN QABC Lennot, Mark B. Director  08-31-07 Buy 1,500 9.97')

    INSERT InsiderTransaction (TradeMsg) VALUES(

    'INSIDER TRAN QABC  O''Neal, Linda COO  08-01-08 Sell 5,000 6.50')

    go

    -- Extract dates from stock trade message text

    -- Pattern match for MM-DD-YY using the PATINDEX string function

    SELECT TradeDate=substring(TradeMsg,

    patindex('%[01][0-9]-[0123][0-9]-[0-9][0-9]%', TradeMsg),8)

    FROM InsiderTransaction

    WHERE patindex('%[01][0-9]-[0123][0-9]-[0-9][0-9]%', TradeMsg) > 0

    /* Partial results

    TradeDate

    09-02-08

    08-25-08

    08-20-08

    */

    -- Update table with extracted date

    -- Convert string date to datetime

    UPDATE InsiderTransaction

    SET TradeDate = convert(datetime, substring(TradeMsg,

    patindex('%[01][0-9]-[0123][0-9]-[0-9][0-9]%', TradeMsg),8))

    WHERE patindex('%[01][0-9]-[0123][0-9]-[0-9][0-9]%', TradeMsg) > 0

    SELECT * FROM InsiderTransaction ORDER BY TradeDate desc

    /* Partial results

    InsiderTransactionID    TradeDate   TradeMsg    ModifiedDate

    1     2008-09-02 00:00:00.000 INSIDER TRAN QABC Hammer, Bruce D. CSO 09-02-08 Buy 2,000 6.10      2008-12-22 20:25:19.263

    2     2008-08-25 00:00:00.000 INSIDER TRAN QABC Schmidt, Steven CFO 08-25-08 Buy 2,500 6.70      2008-12-22 20:25:19.263

    3     2008-08-20 00:00:00.000 INSIDER TRAN QABC  Hammer, Bruce D. CSO  08-20-08 Buy 3,000 8.59  2008-12-22 20:25:19.263

    */

    -- Cleanup task

    DROP TABLE InsiderTransaction

    go

    /************

    VALID DATE RANGES FOR DATETIME DATA TYPES

    SMALLDATETIME (4 bytes) date range:

    January 1, 1900 through June 6, 2079

    DATETIME (8 bytes) date range:

    January 1, 1753 through December 31, 9999

    -- The statement below will give a date range error

    SELECT CONVERT(smalldatetime, '2110-01-01')

    /*

    Msg 242, Level 16, State 3, Line 1

    The conversion of a varchar data type to a smalldatetime data type

    resulted in an out-of-range value.

    */

    ************/

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

    -- SQL CONVERT DATE/DATETIME script applying table variable

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

    -- SQL Server convert date

    -- Datetime column is converted into date only string column

    DECLARE @sqlConvertDate TABLE ( DatetimeColumn datetime,

                                    DateColumn char(10));

    INSERT @sqlConvertDate(DatetimeColumn) SELECT GETDATE()

    UPDATE @sqlConvertDate

    SET DateColumn = CONVERT(char(10), DatetimeColumn, 111)

    SELECT * FROM @sqlConvertDate

    -- SQL Server convert datetime

    -- The string date column is converted into datetime column

    UPDATE @sqlConvertDate

    SET DatetimeColumn = CONVERT(Datetime, DateColumn, 111)

    SELECT * FROM @sqlConvertDate

    -- Equivalent formulation

    -- SQL Server cast datetime

    UPDATE @sqlConvertDate

    SET DatetimeColumn = CAST(DateColumn AS datetime)

    SELECT * FROM @sqlConvertDate

    GO

    /* First results

    DatetimeColumn                DateColumn

    2012-12-25 15:54:10.363       2012/12/25 */

    /* Second results:

    DatetimeColumn                DateColumn

    2012-12-25 00:00:00.000       2012/12/25  */

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

    -- SQL date sequence generation with DATEADD & table variable

    -- SQL Server cast datetime to string

    -- SQL Server insert default values method

    DECLARE @Sequence table (Sequence int identity(1,1))

    DECLARE @i int; SET @i = 0

    WHILE ( @i < 500)

    BEGIN

    INSERT @Sequence DEFAULT VALUES

    SET @i = @i + 1

    END

    SELECT DateSequence = CAST(DATEADD(day, Sequence,getdate()) AS varchar)

    FROM @Sequence

    GO

    /* Partial results:

    DateSequence

    Dec 31 2008  3:02AM

    Jan  1 2009  3:02AM

    Jan  2 2009  3:02AM

    Jan  3 2009  3:02AM

    Jan  4 2009  3:02AM

    Jan  5 2009  3:02AM

    Jan  6 2009  3:02AM

    Jan  7 2009  3:02AM

    */

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

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

    -- SQL Last Week calculations

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

    -- SQL last Friday

    -- Implied string to datetime conversions in DATEADD & DATEDIFF

    DECLARE @BaseFriday CHAR(8), @LastFriday datetime, @LastMonday datetime

    SET @BaseFriday = '19000105'

    SELECT @LastFriday = DATEADD(dd,

    (DATEDIFF(dd, @BaseFriday, CURRENT_TIMESTAMP) / 7) * 7,

                            @BaseFriday)

    SELECT [Last Friday] = @LastFriday

    -- Result: 2008-12-26 00:00:00.000

    -- SQL last Monday (last week's Monday)

    SELECT @LastMonday=DATEADD(dd,

    (DATEDIFF(dd, @BaseFriday, CURRENT_TIMESTAMP) / 7) * 7 - 4,

                            @BaseFriday)

    SELECT [Last Monday]= @LastMonday 

    -- Result: 2008-12-22 00:00:00.000

    -- SQL last week - SUN - SAT

    SELECT [Last Week] = CONVERT(varchar,dateadd(day, -1, @LastMonday), 101)+

    ' - ' +

    CONVERT(varchar,dateadd(day, 1,  @LastFriday), 101)

    -- Result: 12/21/2008 - 12/27/2008

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

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

    -- SQL Last Date calculations

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

    -- Last day of prior month

    -- Last day of previous month

    SELECT convert( varchar, dateadd(dd,-1,DATEADD(mm, DATEDIFF(mm,0,getdate() ), 0)),101)

    -- 01/31/2019

    -- Last day of current month

    SELECT convert( varchar, dateadd(dd,-1,DATEADD(mm, DATEDIFF(mm,0,getdate())+1, 0)),101)

    -- 02/28/2019

    -- Last day of prior quarter

    -- Last day of previous quarter

    SELECT convert( varchar, dateadd(dd,-1,DATEADD(qq, DATEDIFF(qq,0,getdate() ), 0)),101)

    -- 12/31/2018

    -- Last day of current quarter

    -- Last day of current quarter

    SELECT convert( varchar, dateadd(dd,-1,DATEADD(qq, DATEDIFF(qq,0,getdate())+1, 0)),101)

    -- 03/31/2019

    -- Last day of prior year

    -- Last day of previous year

    SELECT convert( varchar, dateadd(dd,-1,DATEADD(yy, DATEDIFF(yy,0,getdate() ), 0)),101)

    -- 12/31/2018

    -- Last day of current year

    SELECT convert( varchar, dateadd(dd,-1,DATEADD(yy, DATEDIFF(yy,0,getdate())+1, 0)),101)

    -- 12/31/2019

    GO
    ------------

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

    -- SQL Server dateformat and language setting

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

    -- T-SQL set language

    -- String to date conversion

    SET LANGUAGE us_english

    SELECT CAST('2018-03-15' AS datetime)

    -- 2018-03-15 00:00:00.000

    SET LANGUAGE british

    SELECT CAST('2018-03-15' AS datetime)

    /* Msg 242, Level 16, State 3, Line 2

    The conversion of a varchar data type to a datetime data type resulted in

    an out-of-range value.

    */

    SELECT CAST('2018-15-03' AS datetime)

    -- 2018-03-15 00:00:00.000

    SET LANGUAGE us_english

    -- SQL dateformat with language dependency

    SELECT name, alias, dateformat

    FROM sys.syslanguages

    WHERE langid in(0,1,2,4,5,6,7,10,11,13,23,31)

    GO

    /* 

    name        alias             dateformat

    us_english  English           mdy

    Deutsch     German            dmy

    Français    French            dmy

    Dansk       Danish            dmy

    Español     Spanish           dmy

    Italiano    Italian           dmy

    Nederlands  Dutch             dmy

    Suomi       Finnish           dmy

    Svenska     Swedish           ymd

    magyar      Hungarian         ymd

    British     British English   dmy

    Arabic      Arabic            dmy

    */

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

    Sql Server 中一个非常强大的日期格式化函数

      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

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  • 原文地址:https://www.cnblogs.com/mishy/p/1845691.html
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