my datetime field looks like this:
2011-02-07 06:51:32.000 (yyyy-mm-dd)
User input is in this format:
02-07-2011 (only the date)
This should be converted to:
02-07-2011 00:00:00.000
i tried CONVERT:
CONVERT(VARCHAR(10),myDateTimeField,113)
but this only works with date values not with datetime.
please help!
I used the following function:
CONVERT(datetime,Cast(myDateInput AS Char (10)), 105)
thanks for all your answers! and my apoligizes for changing my question!
select convert(varchar, myDateTimeField, 105) ...
Source: http://www.mssqltips.com/sqlservertip/1145/date-and-time-conversions-using-sql-server/ and http://msdn.microsoft.com/en-us/library/aa226054(v=sql.80).aspx
Crystal has a function called Date; it takes either YYYY, MM, DD or a datetime as arguments and returns a date.
So I would suggest you make a formula to change the date to a datetime and display it.
date( mytable.mydatetimevar )
You should then be able to format this date as you want with the normal date field formatting options.
An alternative method of doing it is using Crystal's DatePart function to pull out the month, year, day and then restructure as required.
Try this:
select DATEPART(mm, myDateTimeField) + '-' +
DATEPART(dd, myDateTimeField) + '-' +
DATEPART(year, myDateTimeField)
I don't think it's surprising that a DATETIME field carries time information ;)
In fact, you shouldn't alter the field itself, as you would lose the database engine's ability to use date/time related functions with this field.
(the format used is ISO 8601 which helps the engine to easily identify the single parts)
As others said, it's good practice to format the date when you are retrieving it, either in your SELECT statement or in your application. (for more tips regarding this we would indeed need the information what sql server and what appliccation language you are using).
try converting with Style ID - 110
CONVERT(VARCHAR(10),myDateTimeField,110)
Result will be: 02-07-2011
Related
I am using SQL Server Management Studio 18 against SQL Server 2016. I have some material that are in batches and those batches have expiration dates that are held as strings, but are basically in the format of 'yearmonthday', e.g. '20210312' for March 3rd, 2021. My goal is to only see material that is expiring after the current date. Whenever I try to CAST the expiration date column AS DATE within the WHERE clause, I get this error:
Conversion failed when converting date and/or time from character string
(or something similar when trying different methods).
So, right now my code looks like this:
SELECT MaterialColumn, BatchColumn, CAST(ExpirationColumn AS DATE)
FROM StockTable
WHERE CAST(ExpirationColumn AS DATE) > CAST(GETDATE() AS DATE)
If I don't do the WHERE clause, I know I can CAST the ExpirationColumn as DATE without issue, but when it's in the WHERE clause, I run into that error. Is there any way I can filter to see only the dates that I want?
You can use try_cast() instead:
SELECT MaterialColumn, BatchColumn, CAST(ExpirationColumn AS DATE)
FROM StockTable
WHERE TRY_CAST(ExpirationColumn AS DATE) > CAST(GETDATE() AS DATE);
You can also find the bad values:
SELECT ExpirationColumn
FROM StockTable
WHERE TRY_CAST(ExpirationColumn AS DATE) IS NULL AND ExpirationColumn IS NOT NULL;
It sounds like you might need to fix some data values.
Honestly, if your dates are all stored in the format yyyyMMdd then there's no need to convert. Instead use a varchar parameter, as (at least) a varchar in the format yyyyMMdd had the same sort order as a date.
As a result you just convert GETDATE to the right format:
WHERE Expiration > CONVERT(varchar(8), GETDATE(), 112)
Of course, this doesn't change my statements in the comment; fix your design, don't stores dates as a string but as a date (and time) data type.
I am not sure if this has already been answered but I could not find anything.
I am trying to convert the column of dates from MM/DD/YYYY to DD/MM/YYYY.
I must confess that I don't even know where to begin on this. I was thinking I might try an update statement but I am unsure as to how to format it. Any help would be appreciated.
You need to do two level of conversation :
select convert(varchar(12), convert(date, datecol, 101), 103)
In general, you need to fix the data-type (if that is in your hand) instead of doing conversation in SQL. Date formatting should be done at the presentation layer.
You can try this by fixing the data type in the actual table. For displaying purpose either on a webpage, reports or whatever.
SQL Server provides a number of options you can use to format a date/time string. In select, you can try one of the suggested methods as here.
For all these conversions you need to pass the date values in proper data type which may be the date or date-time.
Here is one of the examples of your illustration.
declare #DateInString varchar(20) = Cast(getdate() as Varchar(20))
select convert(varchar(12), convert(date, #DateInString, 101), 103)
You could also do Select Format(datecol, 'dd/MM/yyyy')
This will return your datetime field as a varchar - you should then be able to insert that into your target.
I have a little query that strips the date from the datetime field but when I try to convert it from GMT to CST it readds the date. Is there a better way to do this?
Location table:
arrival
4-6-2018 12:35:43
SELECT arrival
FROM(
SELECT CONVERT(VARCHAR(8), arrival))
FROM locations
)a
This query will give me this result:
12:35:43
SELECT (DATEADD(hour,-5,arrival))
FROM(
SELECT CONVERT(VARCHAR(8), arrival))
FROM locations
)a
4-6-2018 12:35:43
This query will give readd the date. How can I remove the date and then do the dateadd function without it readding the date
arrival seems to be a DateTime, which always carries a date part. You need a time instead, supported by SQL Server 2008+:
cast(DATEADD(hour,-5,arrival) as time)
To quote from DATEADD (Transact-SQL) - Return Types:
The return data type is the data type of the date argument, except for string literals. The return data type for a string literal is datetime. An error will be raised if the string literal seconds scale is more than three positions (.nnn) or contains the time zone offset part.
Emphasis my own.
As you are passing a string (varchar), then DATEADD is returning a datetime.
Like those in the comments have said, if you use the correct data type (time) this problem goes away:
SELECT DATEADD(HOUR, -5,CONVERT(time,Arrival))
FROM (VALUES('4-6-2018 12:35:43'),('4-6-2018 07:35:43'),('4-6-2018 03:35:43')) V(Arrival)
Probably this is what you are asking for:
SELECT Convert(Varchar(8), DATEADD(hour,-5,arrival), 108)
FROM locations;
Note: This is compatible with SQL server versions that doesn't have Time datatype too.
How can I convert this 201402110544 to date(2014-02-11) in SQL server 2008?
You can cast as DATE data type (https://msdn.microsoft.com/en-us/library/bb630352(v=sql.100).aspx)
SELECT CAST(datetime_value AS DATE)
SELECT CAST(GETDATE() AS DATE) --> 2015-08-18
If you have a string to cast as DATE you can use:
SELECT CAST(LEFT('201402110544', 8) AS DATE)
You trim out the time part, by taking 1st 8 chars (YYYYMMDD) and will result a valid string to cast as DATE.
If this format is always the same, you can do this
DECLARE #d VARCHAR(20)='201402110544'
SELECT CAST(SUBSTRING(#d,0,9) as DATETIME)
Also have a look at The ultimate guide to the datetime datatypes which explains in detail about handling date-times
String to date conversion sure is a weakness of SQL Server. CONVERT does that, but can only deal with a number of given formats. So you must convert your string into such a format first and then convert it to date afterwards.
One such format is 120 = 'yyyy-mm-dd hh:mi:ss' which I think comes closest to yours. Another 102 = 'yyyy.mm.dd' suffices to get the date.
convert(
date,
concat(substring(datestring, 1,4), '.',
substring(datestring, 5,2), '.',
substring(datestring, 7,2)),
102)
from data;
SQL fiddle: http://www.sqlfiddle.com/#!3/9eecb7/3689
EDIT: I stand corrected. Horia is right; CAST supports 'yyyymmdd', so you can use it directly by merely cutting of the string's time part. This is more readable than my suggestion above, which makes CAST the better option in your case.
This should be easy
I have a date column on table A
SELECT * FROM TABLEA
WHERE DTE = '01/02/2010'
The problem is that this is deployed onto US servers and I have no control over the date as its an arg.
How can I tell SqlServer to treat this date as being in that format??
I gave tried this:
SELECT *
FROM TABLEA
WHERE DTE = CONVERT(VARCHAR(10), '01/01/2010' , 101) AS [DD/MM/YYYY]
Your last try was almost correct, but it should have been
SELECT * FROM TABLEA WHERE AS_OF_DATE = CONVERT(DATETIME, '01/01/2010', 101)
Use a safe format. For dates (without a time component), the safe format is YYYYMMDD, e.g. today is '20100209'.
For datetimes, the safe format is YYYY-MM-DD'T'HH:mm:SS, where 'T' is the literal T, so right now is '2010-02-09T11:10:30'.
(When I'm saying safe, I mean that SQL Server always, unambiguously, knows how to convert these strings into datetime values)
Check out this reference article: The ultimate guide to the datetime datatypes
EDIT: Specifically what Tibor says about SET DATEFORMAT & SET LANGUAGE, since you mention that you have no control over the input format.
Another option is a double conversion (check performance when used as criteria):
select strTempNo, dtmTempDateStart,
convert(varchar(10), Convert(datetime, dtmTempDateStart, 103), 126) As UTCDate
I use 103 here as the data is already in UTC format but this works as well (UTC ISO8601 is 126).
If your dates are known to be always in American format you have to use 101.
Alternatively use 112 (ISO "safe" format) and cut the first 8 characters out of the string.
Data sample: (Sorry, don't have an American date table available)
521002 2008-09-1500:00:00.000 2008-09-15
580195 2008-04-1500:00:00.000 2008-04-15
530058 2008-09-2200:00:00.000 2008-09-22
580194 2008-04-0200:00:00.000 2008-04-02
500897 2008-07-0100:00:00.000 2008-07-01
500966 2008-09-2300:00:00.000 2008-09-23