I am dealing with a date/time from Australia (I am located in the USA). I am unable to get the following string to insert into a DATETIME2 column:
2010/19/10 04:38:12.892
As you can see, it's formatted in yyyy/dd/mm HH:MM:ss.MMM format. I understand that the normal format is yyyy-mm-dd HH:MM:ss.MMM. What I am wondering is if there is a locality setting on SQL Server that I can change to get it to accept this format, or if I need to parse it and rearrange it myself.
EDIT: Just for your information, I have been importing a mm/dd/YYYY HH:MM:ss.MMM format string into the field just fine.
It depends on the "locale" date format, I guess.
Some samples on how to convert here : http://www.java2s.com/Code/SQLServer/Date-Timezone/Formatdatemmddyyyy.htm
Hope this was helpful.
Try issuing SET DATEFORMAT ydm; before INSERT. Then CONVERT(DATETIME,('2010/19/10 04:38:12.892')); works fine.
More info
You can try this:
SET DATEFORMAT YDM;
select cast('2010/19/10 04:38:12.892' as datetime)
And it will parse it correctly
UPDATE:
I found help here.
But I tried casting to datetime2 directly and it didn't work. I don't understand why you can cast to datetime and not datetime2. Perhaps a good question for SO. :)
Related
How do you convert SQL mm/dd/yy datetime to mm/dd only? On Microsoft server.
Thanks all.
With dates and times it is an extremely common mistake to believe that what you see is what is stored. If the field is date, datetime, smalldatetime or datetime2 then what is stored are integers, not strings. So if the field is one of these, then:
convert(varchar(5),[date_field],1)
or
format([date_field],'MM/dd') -- mssql 2012 onward
If the information is a string already then left() will do the job.
Since you have specified an input format, the input must already be a string. Simply truncate with
cast(dateIn as char(5)).
You can use LEFT to just return the day and month:
SELECT LEFT('12/12/2000', 5)
I realize this isn't directly answering your question the way you asked it, but the best advice I can give is: Don't.
Instead, send back the field in its native datetime type. The database is not the place to be doing formatting. Instead, format the date in your application code.
For example, if you are calling SQL Server from a C#/.NET application, you could retrieve the value from a DataReader like this:
DateTime dt = (DateTime) reader["YourDateTime"];
Then you would format it as a string like this:
string s = dt.ToString("MM/dd");
This will ensure that the date is formatted correctly. If you are using a different language to call SQL Server, there are probably similar methods in that language.
One of the problems with the other approach mentioned (trunacating the string) is that the original value might not be formatted in mm/dd/yyyy to begin with. That all depends on the environment settings where the SQL Server is running. If you run the same code on an environment with dd/mm/yyyy settings, you would have unexpected results. This is avoided by using the native data type, the way I described.
I'm trying to remember the syntax to change a date field into a string. I know I'm close but not 100% correct. Here is what I'm using so far: TO_CHAR(FIELD_NAME). I'm using an Access database. The error I'm getting is: undefined expression. Any help would be very much appreciated.
Use either CStr(dateField) or Format(dateField) to convert.
Additionally you can add parameters to Format() to show it in a different format, such as:
Format(dateField, "general date") 9/12/2010
Format(dateField, "long date") Monday, September 12, 2011
Given that you're using MS Access and its a date field you're probably not just looking to convert to string but to also format the Date. If that is indeed the case you'll want the Format function
SELECT Format ([DateCreate], "yyyy/mm/dd") AS Foo
FROM MSysObjects;
If you're using SQL Server, try out CAST or CONVERT
You can use the CONVERT function, like this:
CONVERT(VARCHAR, DateField, 100)
Here's a link that shows the different date formats you can use:
http://www.sql-server-helper.com/tips/date-formats.aspx
I assume SQL Server as you're questions in the past are .NET Questions.
Use CONVERT
http://msdn.microsoft.com/en-us/library/ms187928.aspx
I have problem. I have script with more insert where is datetime in format 'DD.MM.YYYY'.
Problem is that server understand it as 'MM.DD.YYYY', so half of dates import with wrong value and half of dates do error.
Is any simple way how to say server that what is correct format?
I know that in past, if I worked with Oracle, I solve it by to_date function where I could specify format.
I believe http://support.microsoft.com/kb/173907 holds the answer
eg
set dateformat dmy
Using something like this should work:
convert(datetime, '28.6.2011', 104)
From here:
http://anubhavg.wordpress.com/2009/06/11/how-to-format-datetime-date-in-sql-server-2005/
i need to check for a specific DateTime value in my table from my code (VB.NET) and i don't know how to format the DateTime as a string. i've read that SQL Server will recognize my string if it's in either date, time, or date and time format. i mean:
'May 15, 2004'
'5/15/2004'
'20040515'
'2004 4 am'
will SQL Server recognize these strings as valid DateTime values? i'm curious because if i check the actual DateTime values in the table they are in this format:
2/2/2006 3:49:33 PM
Don't put the date/time value in the SQL query in the first place - use a parameterized query and then you don't need to know or care what format SQL Server would parse literals as. You put the placeholder in the SQL, and specify the value as a DateTime in the parameter collection.
You should be using parameterized SQL as a matter of course, in fact - not only does it get rid of formatting and parsing problems like this, but possibly more importantly it's the single most effective weapon against SQL injection attacks.
If not using a parameterized query, use CAST/CONVERT to explicitly change a string to a DATETIME:
SELECT CAST('2/2/2006 3:49:33 PM' AS DATETIME)
On my SQL Server 2005, that returns to me:
2006-02-02 15:49:33.000
Mind that the default date format in SQL Server can be different than what you provide.
This has always been safe that I have found:
YYYY-MM-DD HH:MI:SS
If you're comparing DateTime to DateTime, you don't have to worry about conversion, necessarilly, but yes, Sql Server (at least as of 2k8, and I believe 2k5 as well) will automatically parse a DateTime from a string. That is, if you pass '5/15/2004' it will see 5/15/2004 12:00:00 AM or something similar.
a better way, though, is to use SqlParameters in your SqlCommand from Code.
When I run this in sql server2005 I got error.
select * from productratedates
where RateDate BETWEEN '31/10/2009' AND '03/11/2009'
Error: The conversion of a char data type to a datetime data type resulted in an out-of-range datetime value.
But When I run this in SQl server 2005. It is perfectly all right.
select * from productratedates
where RateDate BETWEEN '2009-10-31' AND '2009-11-03'
I want to compare date in British format.
Any help!!
Your comment says you'd like to enter dates in the day/month/year format. You can choose that format using SET DATEFORMAT:
SET DATEFORMAT dmy;
For example:
set dateformat dmy
select cast('31/10/2009' as datetime) -- succeeds
set dateformat mdy
select cast('31/10/2009' as datetime) -- fails
You can retrieve the current dateformat setting with DBCC:
dbcc useroptions
A list of available languages, with their dateformat, is available from:
exec sp_helplanguage
For me, the language called "British" has dateformat dmy. So you can change the default language for your login to British (from the property page of your login.) You can even specify it in the connection string:
Server=<server>;Uid=<login>;Pwd=<password>;Current Language=British
You could convert the date to YYYY-MM-DD format before you send it to the server.
Dates get read in US format where possible, so '31/10/2009' has to be UK format, but '03/11/2009' flips over to 11th March. That messes up your BETWEEN by going backwards in time.
I don't know if it would work for you, but we always use the format dd-mmm-yyyy:
select * from productratedates where RateDate BETWEEN '31-oct-2009' AND '03-nov-2009'
How a date is formatted is actually an interface thing. If you are looking purely at the data dates should ALWAYS be in one specific format YYYY/MM/DD.
Your interface is responsible for displaying the date in the localized format. By using this practice the script is ambiguous about where it is used and what language it is. so comparing the date should always be done in the standardized format.
What I suggest you to do is have your interface show it in the format you like and the back-end (including SQL statements) to be the standardized date format.