This example uses the CONVERT() function to convert a string in ANSI date format to a datetime: If the conversion fails, the CONVERT() function will raise an error: The TRY_CONVERT() function, on the other hand, returns NULL instead of raising an error if the conversion fails: Both CONVERT() and TRY_CONVERT() function can recognize ANSI/ISO and US formats with various delimiters by default so you dont have to add the style parameter. If you need the result in a date format you can use: In addition to CAST and CONVERT, if you are using Sql Server 2008, you can convert to a date type (or use that type to start with), and then optionally convert again to a varchar: If you have a datetime field that gives the results like this 2018-03-30 08:43:28.177, Proposed: and you want to change the datetime to date to appear like 2018-03-30. (but i know this wont compete with Naomi's script), (VARCHAR(4),datepart(YYYY,System_Creation_Date_Time, (VARCHAR(2),datepart(MM,System_Creation_Date_Time, (VARCHAR(2),datepart(DD,System_Creation_Date_Time))+'-', (VARCHAR(2),datepart(HH,System_Creation_Date_Time, (VARCHAR(2),datepart(MI,System_Creation_Date_Time, (VARCHAR(2),datepart(SS,System_Creation_Date_Time. Yes. The most obvious thing about this result is that the time value doesnt include the date. 1. create a new column with datetime data type. Thanks for contributing an answer to Stack Overflow! 2. use the new date time column Swift: From Protocol to AssociatedType then Type Erasure, Automations tools and extensions you need to start using as Webflower, From LA Fashion Designer to NY Programmer, All Finpro Community, We can also see that the time variable has more fractional seconds precision, and we end up with a fractional part of 1233333 (vs 123 for the datetime value). When you convert a datetime value to time, only the time portion of the value is copied. Web9808 This sessions YDM date format is not supported when converting from this character string format to date, time, datetime2 or datetimeoffset. In this example, I set the fractional seconds to 125 but datetime rounded it up to 127 (because it can only be rounded to increments of .000, .003, or .007 seconds). DECLARE @SDATE * Purpose: Converts a Vista datetime string to a SQL datetime variable To perform any queries we have to create a database. Find centralized, trusted content and collaborate around the technologies you use most. The time value however, set the fractional seconds to 1266667. 2011-12-16 22:23:12.700 The datetime data type is rounded to increments of .000, .003, or .007 seconds. Is it cheating if the proctor gives a student the answer key by mistake and the student doesn't report it? "alternatively another way is not to find the difference in LABS.DATE and PTF.DATE in seconds but rather add the seconds to the date and compare it. Is it possible for you to change the data type to datetime ? Isn't that how I create a new column with a datetime data type as you suggested above? I would like to create a column that contains the number of seconds from that baseline so I can do some subtraction with that number. All Rights Reserved. Heres an example of an explicit conversion. One of the benefits of converting a datetime value to time is that you reduce the storage size from 8 bytes, down to either 3, 4, or 5 bytes (depending on the precision you use for the time value). [ConvertVistaDate] Script Date: 02/12/2010 15:22:52 ******/, FUNCTION [dbo]. The exact result will depend on the fractional seconds precision that you assign to time. At what point in the prequels is it revealed that Palpatine is Darth Sidious? Lets get #ready to start the #journey, SQL Introduction Regards to Data Query, Manipulation, Definition Language. The date is in the form yyyy-mm-dd. This function works fine but it takes over 17 hours to go through about 350M records. This happens because the time value is using the default scale of 7 (because we didnt explicitly specify a scale). Any suggestions you can provide would be very helpful. Not sure if it was just me or something she sent to the whole team, Cooking roast potatoes with a slow cooked roast. What happens if you score more than 99 points in volleyball? SELECT CONVERT(datetime, CONVERT(varchar(8), 8. In this article, we will look at how to convert Date to Datetime. 3. SYSDATETIME (): To returns the servers date and timeSYSDATETIMEOffset (): It returns the servers date and time, along with UTC offsetGETUTCDATE (): It returns date and GMT (Greenwich Mean Time ) timeGETDATE (): It returns server date and time We have to pad with zeros to convert time, * ----------------------------------------------------------------- */, if @mdate is null return null -- Returns null if passed a null, set @mdate = RTRIM(LTRIM(@mdate)) -- Trim leading and trailing blanks, if @mdate = '' return null -- return null if date is now empty, --Split date and time values, if time is not set assume midnight (00:00:00), set @dotlocation = charindex('. I am running a couple of small tests now and everything looks good. You need to specify the In this example, we are converting the date 01-01-2021 into Datetime as shown below. SQLServerTutorial.net website designed for Developers, Database Administrators, and Solution Architects who want to get started SQL Server quickly. I didn't need to create a peristed column, just a new datetime column as you suggested. "cannot be persisted because the column is non-deterministic. This [VistaDateToDT] Script Date: 03/26/2010 08:18:09 ******/, /****** Object: UserDefinedFunction [dbo]. I need to find if my lab date is in a window of exactly 7 days (to the second) from hospital admission or 24 hrs (exactly in seconds) after hospital discharge. 2. If not, how would I change the WHERE clause? Is it the number of seconds from some baseline? SET @SDATE = '2011-12-16 20:03:36.860' rev2022.12.9.43105. The aim of this article data is to convert DateTime to Date in SQL Server like YYYY-MM-DD HH:MM: SS to YYYY-MM-DD. The presentation of the data (like in your case) is best handled outside of SQL Server by the UI but if you need to do that in SQL then something like this. * Function VistaDateToDT Obtain closed paths using Tikz random decoration on circles. Change the sessions date format or provide a style to the explicit conversion. I also read that you shouldn't use functions in a WHERE clause. How do I convert a SQL datetime to seconds? When converting YYYY-MM-DD to datetime2 (3), it is always interpreted as such. For While writing stored procedure or SQL queries, many a times, we need to convert either VARCHAR to DATETIME or INT values to DATETIME. This equates to UTC-4 and therefore to convert to UTC requires adding 4 hours to the source datetime, resulting in a conversion from 12:00 to 16:00 on the same date. The CONVERT() function in. If you dont specify this, it will use 7, which provides for an accuracy of 100 nanoseconds. That's not what the OP asked for. Also, I had to use varchar(11) instead of varchar(10) to prevent the year to be shortened (eg. Did neanderthals need vitamin C from the diet? * 3100101.211801xxx Typesetting Malayalam in xelatex & lualatex gives error, Received a 'behavior reminder' from manager. I have a datetime column in SQL Server that gives me data like this 10/27/2010 12:57:49 pm and I want to query this column but just have SQL Server return the day month and year - eg. The datetime data type has a maximum of 3 digits for its fractional seconds part. The aim of this article data is to convert DateTime to Date in SQL Server like YYYY-MM-DD HH:MM: SS to YYYY-MM-DD. Syntax for the SQ: CONVERT () function is as follows. In SQL Server, we can easily convert a standard DateTime format to any other DateTime format using the You will notice that the offset is zero. You can use this function taken from Pavel Gatilov's blog to convert a 64-bit integer to a datetime value with millisecond precision in server local time: CREATE Ready to optimize your JavaScript with Rust? Thanks again to all for your suggestions and guidance. In this example, we are converting the date 01-01-2021 into Datetime. see http://msdn.microsoft.com/en-us/library/ms178091.aspx, Thanks for your solution. Here we will use the CONVERT function to convert a datetime into different format in SQL Server. I am new at TSQL so I am grasping at straws to improve the efficiency of my query. Therefore, I could have used time(7) for the previous examples to get the same result. Correct? It might be yyyy-MM-dd, dd/MM/yyyy, dd/MM/yyyy 00:00:00, or still something else. We can apply the dummy test case of converting a time from the same time zones to each other: 1. How could my characters be tricked into thinking they are on Mars? In this case, SQL Server performs an implicit conversion behind the scenes when we try to assign the datetime value to a time variable. Not the answer you're looking for? In MariaDB, you can use STR_TO_DATE function if you need a specific format, or CONVERT if you need the default format. A comprehensive guide to the SQL Format function. The 3rd parameter is the date time style you want to convert to. Cause once you are applying a function to a column, SQL Server will not be able to utilize any indexes on the datetime column. I am going to run a full blown query next week, so keep your fingers crossed :=}. In this example, we are converting the date 01-01-2021 into Datetime. Effect of coal and natural gas burning on particulate matter pollution. SQL Query to Check if Date is Greater Than Today in SQL, SQL Query to Convert Date Range to Per Day Records, Difference between Structured Query Language (SQL) and Transact-SQL (T-SQL), SQL Query to Convert Rows to Columns in SQL Server, SQL Query to Add Email Validation Using Only One Query. With computed column, you don't need to manually updated the new column. Strictly speaking, time uses 4, 5, or 6 bytes, because an extra byte is used to store its precision. Data Structures & Algorithms- Self Paced Course, Convert means to change the form or value of something. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. The fn_diffsecond function was provided to me from forum member KH Tan. This was very exhaustive and negatively impacting the performance. This is to be expected, because the time data type is solely for storing time values, not date values. the PERSISTED means SQL Server will physically store the value in the table and update the value when the other column value changed. * to Tsql's datetime format. Asking for help, clarification, or responding to other answers. This is the default. This returns a date data type which will be left to the interface to render as a string, so it may well produce "27/12/2018 00:00:00". I worked on this issue, last weekend and came up with a simple, and yet another solution. 1 * But, time may not be included and instead of attaching insignificant zeros Update the new column when ever you update the LBS.DATE, PTF.DATE etc, 2. use the new date time column for the query, see http://msdn.microsoft.com/en-us/library/ms187819%28SQL.90%29.aspx. Update the new column when ever you update the LBS.DATE, PTF.DATE etc 2. use the new date time column for the query WHERE LBS.DATE2 <= DATEADD (SECOND, -604800, PTF.DATE2) AND LBS.DATE2 > DATEADD (SECOND, 86400, PTF.DDTE2) try and see how's the DECLARE @d1 DATE, @t1 TIME, @dt1 DATETIME; SET @d1 = GETDATE(); SET @t1 = GETDATE(); SET @dt1 = GETDATE(); SET @d1 = A-143, 9th Floor, Sovereign Corporate Tower, We use cookies to ensure you have the best browsing experience on our website. SQL Server Convert Datetime to date and time. If wed simply set the initial value to time in the first place, its fractional part wouldve returned 1250000. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Is this an at-all realistic configuration for a DHC-2 Beaver? * Created Feb 2010 ", /* -----------------------------------------------------------------, --location of the decimal point in the time string, -- if there is no decimal point then set time string to all zeros (time will = midnight), --return null if year can't be converted to a number (Note: some sites were returning "Missing" as a date), --Fileman conversion to year is to add 1700 to millenium/year value. Do you know how to code Sorna's suggestion in case he doesn't get back to me? If you dont do this, it uses 7 (therefore, the previous example uses 7). Connect and share knowledge within a single location that is structured and easy to search. SELECT CONVERT(datetime, CONVERT(varchar(8), @date), 112) I saw 195 instead of 1953), Also, you can use 101 if you want the results formatted mm/dd/yyyy. select date(orderdate),count(1) from orders where orderdate > '2014-10-01' group by date(orderdate); orderdate is in date time. E.g. Or, is there no function in Sql server with this datetime format? Can anyone help me out with this script, and let me know where i am going wrong. Appropriate translation of "puer territus pedes nudos aspicit"? The exact result will depend on the fractional seconds precision that you SELECT CAST(DATEADD (ms, CAST(RIGHT(@UnixDate,3) AS SMALLINT), DATEADD (s, @UnixDate / 1000, '1970-01-01')) AS DATETIME2 (3)) When you run the script above it will display the result as 2014-02-14 03:46:11.300 Yes, thats it. 1. create a new column with datetime data type. I don't understand how this is any different than your suggestion. As stated above it is indeed nice to get a date data-type, but when a specific format is expected (like "dd MM yyyy") then more is needed. We can use the SQL CONVERT () function in SQL Server to format DateTime in various formats. Debian/Ubuntu - Is there a man page listing all the version codenames/numbers? Use the CONVERT function to run this query. */. SQL Server uses the CAST() function to cast or convert a value or an expression from one data type to another. By using some built-in function in SQL Server we can get the WHERE DBO.VISTADATETODT(LABS.DATE) <= DATEADD( SECOND, -604800, DBO.VISTADATETODT(PTF.DATE) )AND DBO.VISTADATETODT(PTF.DDTE) <= DATEADD( SECOND, -86400, DBO.VISTADATETODT(LABS.DATE) ) ". The BETWEEN Operator in SQLYou may use BETWEEN operator with SELECT statement for retrieving data for the given range.The BETWEEN operator can also be used in the DELETE, UPDATE and INSERT statements for specifying the range.You may specify the range of numbers, two dates, and text as using the BETWEEN SQL.The range values are inclusive, for example: Heres an example of an implicit conversion between datetime and time. The obvious consequence of converting a datetime value to date is that To convert all strings in the Arriv_Date column to the SQL Server date format YYYY-MM-DD, you can again use the CAST function. In this article, I am going to share you how to convert a INT value in YYYYMMDD. Making statements based on opinion; back them up with references or personal experience. * Mumps just leaves blanks. Update the new column when ever you update the LBS.DATE, PTF.DATE etc. Are defenders behind an arrow slit attackable? So that it can be directly used in the where clause and no need for the DATEADD function tooo. DECLARE @ClientDatetime datetime; SET @ClientDatetime = '2017-01-23 7:24:00'; SELECT DATEADD(second, DATEDIFF(second, GETDATE(), GETUTCDATE()), @ClientDatetime) AS UTC_Datetime; -- Output 2017-01-23 12:24:00.000 (My server time zone is EST) -- UTC to Client date time DECLARE @UTC_Datetime datetime; SET The date is in the form yyyy-mm-dd. Method 1: Using CONVERT() function. SQL Server functions for converting a String to a Date. It leaves the column in a Date format so that my 'order by' works correctly instead of just a varchar. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 -- Create table CREATE TABLE #TestTable (ItemID INT, IsAvailable INT) -- Insert into table INSERT INTO #TestTable (ItemID, IsAvailable) SELECT 1, NULL UNION ALL SELECT 2, 1 UNION ALL I am trying this function, but not getting it done. What are the criteria for a protest to be a strong incentivizing factor for policy change in China? SYSDATETIME () function is also used to get the current TIME of the System on which the instance of SQL Server is running. SYSDATETIME () function provides more fractional seconds precision compared to the GETDATE () function. We can fetch the TIME part from the DATE and TIME value returned from the SYSDATETIME () function as below: Even if you explicitly set it to another value, it will be rounded. How do I UPDATE from a SELECT in SQL Server? Their existing code was actually using a case expression to convert the 1900 date to a NULL value. So I thought I could create new columns in my two tables that would store the original varchar date to a sql datetime value and another column as the number of seconds (and I don't know what the baseline is to be the number of seconds from that date). In this case, I use the CAST() function directly within the SELECT statement to explicitly convert between datetime and time. I like this option more than the accepted answer. I also had to adjust your solution because I needed all data between the two windows. Unless your data resides in Iceland or another country with a time zone of UTC-0 this is going to be a problem. --YYYYMMDD-HHMMSS We have to pad with zeros to convert time This is an implicit conversion because were not using a conversion function (like the ones below) to explicitly convert it. WebTo convert a datetime to a date, you can use the CONVERT (), TRY_CONVERT (), or CAST () function. I could then use those columns to do my windowing calculation. Where does the idea of selling dragon parts come from? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. SELECT CONVERT(VARCHAR(8), How to use a VPN to access a Russian website that is banned in the EU? We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. To learn more, see our tips on writing great answers. WebThe CONVERT () and TRY_CONVERT () functions can convert United States datetime format (month, day, year and time) by default, therefore, you dont need to specify style Please provide an example of what you are suggesting. 20111216-22:23:12 ", add DATE2 as dbo.VISTADATETODT(DATE) PERSISTED. * Vista Fileman datetime string looks like this: * 3 = millenium, 10 = 2 digit year, 01=month, 01=day, * 21 = hour, 18 = minutes, 01 = seconds, xxx= decimal seconds, * But, time may not be included and instead of attaching insignificant zeros, * Mumps just leaves blanks. By using our site, you Date keyword applied on a datetime column will change it to short date. I would change the function names to the new column names storing this data. The following page deals with datetime conversions: http://www.sqlusa.com/bestpractices/datetimeconversion/, In case you want the format to be exactly as you showed, then. Is Energy "equal" to the curvature of Space-Time? You need to convert your int date to varchar and then try following function. Unlike Oracle TO_DATE function that allows you to build any format string using format specifiers (YYYY and MM This what he aimed to get -- dd/MM/yyyy ; and this what my answer produces 2018-11-20, Firstly, 2018-11-20 is because my PC is configured for Arabic language use ; Secondly, i will try it after changing the short date in my PC. Implicit conversion from data type datetime to int is not allowed. When you run the script above you will get a return the date and time in the year 1900. How did muzzle-loaded rifled artillery solve the problems of the hand-held rifle? Thanks Naomi, and thanks everyone for your support and taking out valuable time to help me with this script. Summary: in this tutorial, you will learn how to convert a string to a datetime in SQL Server using the CONVERT() and TRY_CONVERT() function. * 21 = hour, 18 = minutes, 01 = seconds, xxx= decimal seconds acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Full Stack Development with React & Node JS (Live), Fundamentals of Java Collection Framework, Full Stack Development with React & Node JS(Live), GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, SQL | DDL, DQL, DML, DCL and TCL Commands, SQL | Join (Inner, Left, Right and Full Joins), How to find Nth highest salary from a table, Difference between DELETE, DROP and TRUNCATE, Difference between Where and Having Clause in SQL, Difference between Natural join and Inner Join in SQL, SQL Query to Compare Results With Today's Date. What are the functions I should be researching? Step 1 - We will convert the DateTimeExample column to DateTimeOffset data type and store it in the DateTimeOffsetExample column. The presentation of the data (like in your case) is best handled outside of SQL Server by the UI but if you need to do that in SQL then something like this. I'm starting to get confused on your suggestion and Sorna's suggestion. The data is getting displayed in this format 2011-12-16 20:03:36.860 But i want the data to get displayed in The advantage of computed column vs creating a new normal column is with the new column you have to manually update it whenever you update the record. Did the apostolic or early church fathers acknowledge Papal infallibility? This computed column will calculate and store the data for each row which can be straight away used in the WHERE clause. I am to see the date, but not the time. MySQL CURRENT_DATE() FunctionDefinition and Usage. The CURRENT_DATE () function returns the current date. "YYYY-MM-DD" (string) or as YYYYMMDD (numeric).SyntaxTechnical Details. From MySQL 4.0More Examples For any versions of SQL Server: dateadd(dd, datediff(dd, 0, getdate()), 0), The original DateTime field : [_Date_Time], The converted to Shortdate : 'Short_Date'. So with either method (Computed column or New Column) you can use the following query. looks like one of the function used inVistaDateToDT is non-deterministic. If adding a new column , better to add it as a compueted column to calculate the seconds itself directlywith PERSISTED property. Method 1: Using cast This is a function for casting one type to another type, So here we will use for cast DateTime to date. SQL server is used to convert a value of one type to another type. Method 1: Using cast This is a function Are the S&P 500 and Dow Jones Industrial Average securities? We can convert the Date into Datetime in two ways. E.g. In this example, I remove the fractional seconds altogether by using time(0): When we do this, the storage size of the time value is reduced to 3 bytes (4 bytes including precision) as opposed to 8 bytes for the datetime value. what Sorna suggested is using computed column. It is not assured that the date will be rendered in the OP's format. to convert your date to UTC you need to do this SELECT DATEADD(ss,-1 *DATEDIFF(ss,GETUTCDATE(),GETDATE()),YourDateColumn) FROM table Please Mark This As Answer if it solved your issue Please Vote This As Helpful if it helps to solve your issue Visakh ----------------------------My Wiki User PageMy MSDN PageMy Personal A Computer Science portal for geeks. As mentioned, the time data type allows you to specify the fractional seconds precision. It is that simple to convert Unix TimeStamp to Datetime. How to Write a SQL Query For a Specific Date Range and Date Time? Its accuracy is rounded to increments of .000, .003, or .007 seconds. But when converting to datetime, the interpretation depends on the DATEFORMAT setting and may be interpreted as YYYY-DD-MM instead. The DATE data type was introduced with SQL 2008. Should I be trying to convert to another date data type? If this is possible than you should use the other method that i suggested instead of then_diffsecond. This forum has migrated to Microsoft Q&A. Convert a SQL Server datetime to a shorter date format, msdn.microsoft.com/en-us/library/ms187928.aspx, meta.stackoverflow.com/questions/314561/. SQL Server : Visit Microsoft Q&A to post new questions. Heres an example of an explicit conversion using the CONVERT() function instead of CAST(). Assuming the DATE2 is the computed column or new column, WHERE LBS.DATE2 <= DATEADD (SECOND , -604800, PTF.DATE2) AND LBS.DATE2 > DATEADD (SECOND , 86400, PTF.DDTE2), While trying to alter my table, I get the following error: "cannot be persisted because the column is non-deterministic. I am trying to change the datetime() function in my table. The To subscribe to this RSS feed, copy and paste this URL into your RSS reader. GETDATE(), 112)+'-'+CONVERT(VARCHAR(8),GETDATE(),108). 1. create a new column with datetime data type. Are you saying that I create two columns using the PERSISTED keyword and then use those columns in the following WHERE clause? Photo by Rubaitul Azad on Unsplash. WebSQL SERVER Multiple ways to remove Milliseconds from Datetime (Truncate Datetime till Second) | SQL Server Portal. This will reduce the overhead of computing the seconds in the query each and every time. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, Add a column with a default value to an existing table in SQL Server, How to return only the Date from a SQL Server DateTime datatype, How to check if a column exists in a SQL Server table, LEFT JOIN vs. LEFT OUTER JOIN in SQL Server, Convert string "Jun 1 2005 1:33PM" into datetime. This is achieved by using the time(n) syntax, where n is the scale from 0 to 7. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. SQL Server provides the CONVERT() function that converts a value of one type to another: Besides the CONVERT() function, you can also use the TRY_CONVERT() function: The main difference between CONVERT() and TRY_CONVERT() is that in case of conversion fails, the CONVERT() function raises an error while the TRY_CONVERT() function returns NULL. How is a sql datetime stored internally? Photo by Rubaitul Azad on Unsplash. * 3 = millenium, 10 = 2 digit year, 01=month, 01=day Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, It seems that 106 is "dd mon yy" and "dd/MM/yyyy" is 103, @nahab You are correct. Syntax: CAST ( dateToConvert AS DATE) Example 1: Query: SELECT CAST (GETDATE () AS Just add date keyword. * NOTE: We are dropping decimal seconds! You can modify this by using the time(n) syntax. Step 2: Converting Date to Datetime. WebA simple trick to convert an int date value to proper DATETIME value in SQL Server. The time data type, on the other hand, allows you to specify a fractional seconds precision from 0 to 7. The data is getting displayed in this format, But i want the data to get displayed in this format. WHERE LBS.DATE2 <= DATEADD(SECOND, -604800, PTF.DATE2)AND LBS.DATE2 > DATEADD(SECOND, 86400, PTF.DDTE2). DATETIME When you convert a datetime value to time, only the time portion of the value is copied. Convert datetime to time in SQL Server (T-SQL Examples). Greatly appreciated. This example shows how to use the CONVERT() function to convert strings in ISO date format to datetime values: Note that the CONVERT() function can also convert an ISO date string without delimiters to a date value as shown in the following example: The CONVERT() and TRY_CONVERT() functions can convert United States datetime format (month, day, year and time) by default, therefore, you dont need to specify style 101: In this tutorial, you have learned how to convert a string to a datetime using the CONVERT() and TRY_CONVERT() functions. WebA simple trick to convert an int date value to proper DATETIME value in SQL Server. This query will show the orders for that date rather than datetime. This article contains examples of converting a datetime value to a date value in SQL Server. 2010 10 27 or something like that. I am doing this in the following where clause: WHERE ( dbo.fn_diffsecond( DBO.VISTADATETODT(PTF.DATE), DBO.VISTADATETODT(LABS.DATE) ) >= 0 ) AND ( dbo.fn_diffsecond( DBO.VISTADATETODT(PTF.DATE), DBO.VISTADATETODT(LABS.DATE) ) <= 604800), AND ( dbo.fn_diffsecond( DBO.VISTADATETODT(LABS.DATE), DBO.VISTADATETODT(PTF.DDTE) ) >= 0) AND ( dbo.fn_diffsecond( DBO.VISTADATETODT(LABS.DATE), DBO.VISTADATETODT(PTF.DDTE) ) <= 86400 ). When the time precision is less than the datetime precision, the fractional seconds is rounded up to fit the time precision. [VistaDateToDT](@mdate [varchar](40)), /* ----------------------------------------------------------------- select convert (varchar, getdate (), 103) select convert (varchar, getdate (), 104) select convert (varchar, getdate (), 105) select convert (varchar, getdate (), 106) select convert (varchar, getdate (), 107) select convert (varchar, getdate (), 108) select convert (varchar, getdate (), 109) select convert (varchar, getdate (), 110) select date(orderdate),count(1) from orders where orderdate > '2014-10-01' group by date(orderdate); orderdate is in date time. Convert DateTime function in Sql Server better place (From:SQL Server Database Engine), /* * Vista Fileman datetime string looks like this: SQL Convert Datetime to Date You can convert a DATETIME to a DATE using the CONVERT function. Null DateTime Here is a much simpler way to do the same: Find all tables containing column with specified name - MS SQL Server. In SQL Server, you can use CONVERT function to convert a string with the specified format to a DATETIME value. This article contains examples of converting a datetime value to a time value in SQL Server. Have a look at CONVERT. The shortest date format of mm/dd/yy can be obtained with: Just add date keyword. ', @mdate) --location of the decimal point in the time string, set @timeportion = '000000' -- if there is no decimal point then set time string to all zeros (time will = midnight), set @dateportion = substring(@mdate, 1, @dotlocation - 1), set @timeportion = substring(@mdate, @dotlocation + 1,6), --If date format is not valid return a null, if (LEN(@dateportion) <> 7) OR (isnumeric(@dateportion) <> 1) return null --return null if year can't be converted to a number (Note: some sites were returning "Missing" as a date), --Separate date into day, month, and year, set @year = cast((cast(@year as integer) + 1700) as varchar(5)) --Fileman conversion to year is to add 1700 to millenium/year value, set @time = @timeportion + replicate('0', 6 - LEN(@timeportion)), set @mdate = @month + '-' + @day + '-' + @year + ' ' + substring(@time, 1, 2) + ':' + substring(@time, 3, 2) + ':' + substring(@time, 5, 2), --Check that return value is actually a valid date before attempting cast, if isdate(@mdate) = 1 set @returnvalue = cast(@mdate as datetime). 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