Hi i want to change the default datetime type in sql server. I have already table who has rows and i dont want to delete them. Now the datetime format that had rows is: 2015-11-16 09:04:06.000 and i want to change in 16.11.2015 09:04:06 and every new row that i insert i want to take this datetime format.
SQL Server does not store DATETIME values in the way you're thinking it does. The value that you see is simply what the DBMS is choosing to render the data as. If you wish to change the display of the DATETIME type, you can use the FORMAT() built-in function in SQL Server 2012 or later versions, but keep in mind this is converting it to a VARCHAR
You can get the format you desire via the following:
SELECT FORMAT(YourDateField, N'dd.MM.yyyy HH:mm:ss')
There is no such thing as format of the DATETIME data type, it has no format by nature, formatted is the text representation you can set when converting to VARCHAR or some visualization settings of the client / IDE.
If you, however, want to be able to insert dates using string representations that are alternatively formatted (i.e. control the way string input is parsed to datetime type) you can check SET DATEFORMAT - as explained in the remarks section this will not change the display representation of date fields / variables.
SQL serve provide wide range of date formatting function or way by using that user can change date format as per his requirement.
Some of are giver bellow.
CONVERT(VARCHAR(19),GETDATE())
CONVERT(VARCHAR(10),GETDATE(),10)
CONVERT(VARCHAR(10),GETDATE(),110)
CONVERT(VARCHAR(11),GETDATE(),6)
CONVERT(VARCHAR(11),GETDATE(),106)
CONVERT(VARCHAR(24),GETDATE(),113)
Related
I use the CONVERT() function to trying convert the date format like DD/MM/YYYY with code 103 when I query database, and nothing happens. The data field still displays default format with YYYY/MM/DD.
UPDATE STAFF
SET BIRTH = CONVERT(smalldatetime,'26/08/1900',103)
WHERE ID = 'SF01'
How can I fix this problem ? I'm a newbie so i don't know lots of SQL
Avoid formatting dates in your database, it should be done in the application that queries the data. But IF you still need to do it in your database for whatever reason:
If you want to store the date in the DD/MM/YYYY format in your table then you can do 2 things,
Change your column data type to varchar(not ideal and you should try avoiding this method)
Change the regional settings on the machine running SqlServer and keep it as a date type (this is somewhat useless if you plan on querying data from another app as the app will probably format the date to its local format).
In case you decide to store it as varchar you will need to use the Format function when inserting or updating like this: Format(MyDate, 'DD/MM/YYYY').
On loading a date column from salesforce, I receive it in this format: 2017-01-31 22:00:00. I want convert this to the german format and load into sql table without time.
Also, which datatype should I initialize in creating column in table?
try using the Convert function if you're using MSSQL
select Convert(nvarchar(10),GETDATE(),101)
This will create mm/dd/yyyy
if you need more samples please look at w3schools to convert time in different formats
https://www.w3schools.com/sql/func_sqlserver_convert.asp
I have got several tables in my database (with data) that is formatted in the American standard of mm/dd/yyyy. Is there a way to convert the date to a British format (i.e. dd/mm/yyyy) that doesn't involve dropping and recreating the tables?
Thanks!
I set my data type to >date when I was creating my table. I can store dates in the format mm/dd/yyyy, but not dd/mm/yyyy.
As I've mentioned in my comment, dates are not stored with their display format - in fact, you can say that dates have no display format - only string representation of dates have a display format.
Whenever dealing with string literals representing date and datetime values in SQL server, use ISO 8601 datetime format (yyyy-MM-ddTHH:mm:ss or yyyyMMddTHHmmss).
SQL Server guarantees to properly parse this string representation into date / datetime values, without ambiguity.
Please note the T seperator between the date and the time. There is a very similar standard format, where the T is replaced with a white-space, but the DateTime data type have a bug parsing this format - and it is culture-dependent (Note that DateTime2 does not have that bug) - and that's another reason why you should never use datetime again.
When you use a string literal like '25/03/2018' it's easy for a human to see that it stands for March 25th 2018, but SQL Server will raise an error trying to parse this string into a date if the current value of DATEFORMAT is not DMY.
However, SQL Server will always parse ISO 8601 string representation of dates correctly, regardless of any local settings or previous set dateformat or set language statements etc'. '2018-02-01T15:40:50' will always be parsed is February 1st 2018, 3:40:50 PM.
Unless specified, As Martin Smith wrote in his comment, the default dateformat depends on the defualt language settings of the current login - so a query that works for one login might raise an error for another login - and that's another good reason never to trust culture-specific string representation of datetime.
DECLARE #dt DATETIME = '01/20/2019';
SELECT FORMAT( #dt, 'd', 'en-gb' ) AS 'UK'
Are you referring to the date format displayed by SQL Server Management Studio or a similar application? The format is controlled by Windows Control Panel settings, not by SQL Server. There is no internal format for dates in SQL Server.
This is defined by default from the machine where is running MS SQL Server.
To see all available cultures please do:
select * from sys.syslanguages
Then, you can change SQL Server language using:
SET LANGUAGE BRITISH
... and the date format will always be like you want.
Note: this will change all the database (not just the date format), the other way is to change the date format using the FORMAT function in T-SQL.
I'm moving from an access database to a SQL Server database and wanted to know if I can create my own data type for dates.
I want to have my custom date type to have a format of mm/dd/yyyy instead of yyyy/mm/dd. Is this possible to do?
Use the default/built-in data type to store a specific data type. This will be more efficient and reliable as sql server will only allow the valid data to be stored (data integrity).
Also this will allow you to make use of all the built-in functions to work with that specific data type. In your case if you use Sql Server's datetime data type you will be able to make use of all the datetime functions (DATEDIFF() , DATEADD() , DAY() , YEAR() , MONTH(), DATENAME() etc).
As far as how you see the date/datetime values stored in your database, again you will always have built-in datatime functions to format the date values as it suits you.
Once you have stored the date/datetime values in sql server database and you want to view date value as mm/dd/yyyy instead of yyyy/mm/dd simply do the following:
SELECT CONVERT(VARCHAR(10), [DateColumn], 101)
Custom datatypes are there to be used but there are some very odd issues with them, avoid them whenever you can :)
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.