How can i change dateformat?Forexample:
2009-06-10 10:16:41.123->2009-June
2009-05-10 10:16:41.123->2009-May
You should not change the date-format in your database.
You should just make sure that , when displaying the date, you correctly format the date, so that you display them in the format that you want.
How to do that, is related to the language you use in your program.
You can also output the date directly in the format you want using the method of ck.
Try this:
select cast(datepart(year, mydatecolumn) as char(4)) + '-'
+ datename(month, mydatecolumn)
from mytable
To interpret input use SET DATEFORMAT
To cast to character, see the CONVERT styles.
To format output, use whatever your client environment uses to format output, SQL itself has no output but TDS and display is left to the client.
Its a pain to do custom formats without writing your own function.
best i have is
SELECT NewFormat = YEAR(GETDATE()) + '-' + DATENAME(month, GETDATE())
Related
I want to write a query in SELECT statement with the format 'DD-MMM-YYYY' eg:
'1-Jan-2019' or '23-Mar-2018'
Simply
SELECT CONVERT(VARCHAR, GetDate(), 106)
Returns:
23 Jan 2019
See CAST and CONVERT where the Date and Time Styles
If you really want to return '-' separator, you can do as
SELECT REPLACE(CONVERT(VARCHAR, GetDate(), 106), ' ', '-')
Returns:
23-Jan-2019
You can leverage T-SQL FORMAT() to request exact format of the output and culture as you require:
SELECT FORMAT(GETDATE(), '%d-MMM-yyyy', 'en')
It is available since SQL Server 2012
However, better practice is to control format on an app level
If you drop the dashes e.g. '1 jan 2018' then that works out of the box. It is also a really nifty format that always works if you don't know the database settings.
Just remember that month names are abbriviated differently for different languages.
You can do that pretty easily with a Convert call in SQL to a numbered format. It will be close to what you want, but for your format exactly you will need to replace the spaces in the string with dashses by using a Replace call on the result of the convert.
Reference: https://learn.microsoft.com/en-us/sql/t-sql/functions/cast-and-convert-transact-sql?view=sql-server-2017
Example:
select REPLACE(CONVERT(VARCHAR(20), GetDate(), 106), ' ', '-')
I need to change the date format from 'yyyy-mm-dd' to 'dd.mm.yyyy'.
I have data in my table like this '2018-08-08', I need convert it to '08.08.2018'.
I have tried:
UPDATE daily_tasks
SET date = REPLACE(date, date, CONVERT(VARCHAR(255), daily_tasks.date, 102))
WHERE 1;
But, it doesn't work.
Ideally you should be storing your dates as bona-fide date columns, not as text. That being said, the date text '2018-08-08' is in fact in an ISO format, and would still allow you to do things like sort and compare against other date literals, so it is not so bad.
But converting this text to a '08.08.2018' format is the wrong thing to do. If a anything, you might want to consider adding a new date column new_date to store this date information. Do that, and then populate it with:
UPDATE daily_tasks
SET new_date = TRY_CONVERT(datetime, date);
Store your date as DATE datatype and when you read data from database use
DECLARE #myDate DATE = '2018-08-08'
SELECT FORMAT(#myDate, 'dd.MM.yyyy')
SELECT CONVERT(VARCHAR(10), #myDate, 104)
Your syntax looks like SQL Sever, so i would do :
UPDATE daily_tasks
SET Col = REPLACE(CONVERT(VARCHAR(10), daily_tasks.date, 103), '/', '.')
WHERE . . . ;
However, i would not recommend to do this, just use CONVERT() with SELECT statement whenever necessary :
SELECT REPLACE(CONVERT(VARCHAR(10), daily_tasks.date, 103), '/', '.')
Regardless of the database, dates are stored in an internal format. This is the correct way to store dates. Do not store dates as strings.
You can specify the format when you query:
CONVERT(VARCHAR(255), daily_tasks.date, 102)
Or, you can even add a computed column to provide this information:
alter table daily_tasks
add date_display as ( CONVERT(VARCHAR(255), daily_tasks.date, 102) ) ;
You could convert the date column to a varchar to store the date in your specified format. However I strongly recommend against this. You should leave it stored as a date.
If you want to do a SELECT to get the data out then you can convert it to your specified format like this:
SELECT CONVERT(VARCHAR, daily_tasks.date, 4)
I have a rather strange issue here. I have a date string, which I've created partly by myself to incorporate a variable. The problem is, that I'm setting another language settings. In this case, I have to also convert the string to fit the language settings format. I'm using this code:
cast(convert(varchar, cast(cast(getdate() as date) as varchar) + ' ' + RIGHT('0' + CAST(#HR as varchar), 2) + ':00:00.000', 120) as datetime)
I get the error "The conversion of a varchar data type to a datetime data type resulted in an out-of-range value.", which is normal if you assign wrong date format before casting.
The problem is, that when I try to convert the personally created date string, it doesn't change its format no matter what format code I set it in. That doesn't change even when I hardcode a number instead of my variable:
convert(varchar, cast(cast(getdate() as date) as varchar) + ' 0' + CAST(2 as varchar) + ':00:00.000', 101)
results in 2016-09-14 02:00:00.000
For example,
convert(varchar, dateadd(Hour, 2, getdate()), 101) as datetime
Results in 09/14/2016.
Even though I have a different language setting, isn't SQL server supposed to always recognize the date format in the standard format?
Please give me an advice so I can overcome this issue.
Thanks in advance!
PS: I managed to solve my issue by inserting converted datetime column in a variable before setting bulgarian language. I'm still very interested to know what causes the problem though.
Ok I may have a soution for the question: Why is the format differently handled in SQL-SERVER when converting.
CONVERT(data_type(length),expression,style)
The STYLEvalue only applies for date/time.
So it's because of the datatype that the output is different.
See following example:
SELECT convert(varchar, dateadd(Hour, 2, getdate()), 101) as datetime
You get the result:
09/14/2016
Here your are converting a datetime datatype into a varchar and the STYLE-value with 101 applies for CONVERT and the output is converted in that format.
Example 2 is the same but the inner most part is casted into a varchar before converting it:
SELECT convert(varchar, CAST(dateadd(Hour, 2, getdate()) AS varchar), 101) as datetime
The result you get is:
Sep 14 2016 4:09PM
So because we are trying to convert a varchar into a varchar the STYLE-value doesn't apply for the conversion.
That is also why the first query is handled diffrent then the other:
SELECT convert(varchar, cast(cast(getdate() as date) as varchar) + ' 0' + CAST(2 as varchar) + ':00:00.000', 101)
Here you cast into varchar cast(cast(getdate() as date) as varchar) before converting. So the STYLE-value is not applying because it's not from datatype date/time.
I hope it made it a bit clear. Let me know if this helped.
When you use convert to format the datetime, you can pass a style number to it.
Looky here or here for those numbers.
The query below converts custom created datetimes to the 126 (ISO8601) format.
declare #d int = 2;
SELECT
CONVERT(varchar,
CONVERT(datetime,
CONCAT(FORMAT(GETDATE(),'yyyy-MM-dd'),' ',#d,':0')
)
,126) AS MyDateStamp1,
CONVERT(varchar,
CONVERT(datetime,
CONVERT(varchar,GETDATE(),102)+' '+convert(varchar,#d)+':0'
)
,126) AS MyDateStamp2;
The FORMAT & CONCAT functions can be used in SQL Server 2012 and beyond.
But if you have an earlier version then CONVERT should work instead.
Additional tip:
If you're using the CONVERT solution above, note that
"convert(varchar, CAST(dateadd(Hour, 2, getdate()) AS varchar), 101)" calls for you to set datatype to varchar.
I just came across code
"Convert(date,ML.StartDate,101)"
and since style 101 is mm/dd/yyyy, and the output was yyyy-mm-dd, I knew something was wrong. By changing the code to
"Convert(varchar,ML.StartDate,101)"
the proper date style was displayed in the result set.
I have a date in following format in my DB.
10/16 - mm/yy
I need to convert it to:
October/16
Is this possible?
If it's not possible then please tell me why.
This is not a date, it's missing the day, it's a bad way to store year/month. There should be a 4 digit year to avoid confusion and the year should be listed first to enable correct sorting, e.g. '2016/10' or a numeric value 201610.
You can cast it to a DATE first and then use a FORMAT to disply only month/year:
set dateformat myd;
select format(cast(mystupidcolumn + '/1' as date), 'MMMM/yy')
Or SUBSTR the month part and use a CASE.
try this format,
SELECT DATENAME(month, DATEADD(month, #mydate-1, CAST('2008-01-01' AS datetime)))
You can display date by using this code
select datename(month, YourColumnName) + '/' + right(YEAR(YourColumnName),2)
FROM yourTableName
Simply change yourColumnName with name of your table column and yourTableName with name of table.
Yes you can, and it depend in what database you use to call date functions
If you column Datetime format
SQL server DATENAME(Month, GETDATE())
MySQL database MONTHNAME(now())
otherwise
convert it will in your choice at database or you code logic
split the value and lookup at month enum or fake the date to be accepted and complete date format like 01/10/16
so do something like SELECT DATENAME(Month, datecolumn) + '/' + YEAR (datecolumn)
also you can use instead of Year function DATEPART(yy,datecolumn)
the way you do it with format will look like
CONVERT(VARCHAR(11),GETDATE(),106)
but excepted to get first 3 char of month JUN
I want to convert dateformat from mm/dd/yyyy to yyyy/mm/dd. I want the output in datetime format.
I tried this
convert(datetime,convert(varchar,getdate(),111),123)
but doesn't work. The error is "explicit conversion to datetime not available"
What is the best way to solve this problem? I'm using Sybase.
Try this
select convert(varchar,CAST('12/11/2010' as DateTime),111)
That won't work. The DATETIME data type has its own format that is really the amount of time that has passed since a fixed reference date; if you ask for a DATETIME it will always be returned according to that format.
How it is displayed to an end user is a function of the client. You can use CONVERT to convert it to a string and specify a format for how it is displayed in the string, but then you're returning a string, not a DATETIME. You can return it as a DATETIME (which has no inherent display format), and then it is up to the client application or OS to define how it is formatted for display. In client applications you also typically have formatting functions that display a date/time according to a format you specify. And if you haven't specified it explicitly in an application, then the display of the date/time will typically be defined by the localization settings in the OS.
Basically, there is a difference between the data type - DATETIME - and its representation to end users.
Formatting is something that should be done in the presentation tier not the data tier. However, most vendors, like Sybase, provide the ability to do rudimentary formatting:
Select Cast( Year(GetDate()) As char(4) )
+ '/' + Right( '00' + Cast( Month(GetDate()) As varchar(2) ), 2 )
+ '/' + Right( '00' + Cast( Day(GetDate()) As varchar(2) ), 2 )
Try this query
select (CONVERT(varchar(10), GETDATE(), 120))