I'm using a table that has the date as varchar. example dateformat:
17-Jun-2015
I have tried the following ways to convert and sort the date(dd-MMM-yyyy) to dateTime.
SELECT date, name, author
FROM sometable
ORDER BY CONVERT(DATETIME, date, 106) DESC
I have also tried converting the date in the select statement. doesn't work. The error is
Conversion failed when converting date and/or time from character string.
The conversion types through some similar questions but I have not found any solutions to the format I have. Is there some way of selecting the delimiter between the day month and year??
I also had a browse through this link which has the formats for datetime formats. 106 was the closest to my varchar date. Only my date in the table has '-' between day month and year.
https://msdn.microsoft.com/en-us/library/ms187928.aspx
Appreciate any help.
It should be absolutely fine to use 106 to convert your date format.
But I guess your table contains some of the invalid values in the column causes the error, try to spot them out by TRY_CONVERT:
SELECT date, name, author, TRY_CONVERT(datetime, date, 106) AS convertresult
FROM sometable
WHERE TRY_CONVERT(datetime, date, 106) IS NULL AND date IS NOT NULL
I would use date style 113 to convert to datetime format like this:
DECLARE #date VARCHAR(20) = '17-Jun-2015';
SELECT CONVERT(VARCHAR(20),CAST(#date AS DATETIME),113)
Related
Hi i've a column the_date which is having sample data like
1900-01-01 00:00:00.000
1990-01-01 00:00:00.000
1990-01-02 00:00:00.000
1990-01-03 00:00:00.000
1990-01-04 00:00:00.000
1990-01-05 00:00:00.000
1990-01-06 00:00:00.000
1990-01-07 00:00:00.000
now i just want to select only date only and displaying it into 103 style and convert the column into Date format. i've tried this syntaxconvert(varchar,THE_DATE , 103) but then the column is not in Date format.
any help please.
This Works try it once
SELECT CONVERT(varchar,CAST(DATE_TIME AS DATE),103)AS Date_Time From <yourTable>
It's a little confusing because regardless of the datatype, you will always get the same answer with CONVERT. I'll illustrate this with 2 declared variables, 1 datetime datatype, the other date datatype:
DECLARE #mydatetime datetime = '1990-01-01 00:00:00.000'
DECLARE #mydate date = '1900-01-01'
SELECT convert(varchar,#mydatetime, 103) as mydatetime
SELECT convert(varchar,#mydate, 103) as mydate
Produces:
mydatetime
01/01/1990
mydate
01/01/1900
So you don't need to cast to date, then to 103 format.
If you don't like the time with date in your table (datetime) then you can always ALTER the column in the table to the date datatype. This can be done using SSMS or you can do the SQL:
ALTER TABLE mytable ALTER COLUMN mycolumn DATE
Where DATE is the new datatype. And then only the date is stored in the table.
Converting a string (or an equivalent database type) to another type is called "parsing". Converting another type to string is called "formatting".
The DATE or DATETIME type (or equivalent type in the front-end) does not store dates as string and has therefore no format. A number is used to represent the date internally which counts the days since a reference date (1753-01-01 for SQL-Server). The time is represented as decimal fraction.
Of course you always see the date as formatted when you open the table, because it is converted to a text for display, but it is not stored as formatted.
So, what you have to do if your date is given as text, is to parse it using the 121 format (YYYY-MM-DD HH:MI:SS.MMM (24h)) to get a DATE (or DATETIME).
CONVERT(DATE, the_date, 121) or CONVERT(DATETIME, the_date, 121)
If the_date is already of DATE (or DATETIME) type and you want to display it in the 103 format (DD/MM/YYYY)
CONVERT(VARCHAR(10), the_date, 103)
If the date is given as DATETIME type and you just want to strip off the time part and return the result as DATETIME type again, you can do
DATEADD(dd, DATEDIFF(dd, 0, the_date ), 0)
Note that no date format is involved here, since the date does never appear as text.
thanks for all your answer but for anyone who has my same query i got the solution from here
solution
I want to query a datetime field using a range of dates provided in the format DD/MM/YYYY.
I know that to convert datetime to a DD/MM/YYYY format that I can use:
CONVERT(CARCHAR(10), ORDERDATE,103)`
And this works fine when querying a single date, eg:
SELECT DISTINCT
CONVERT(DATE, ORDERDATE),
CONVERT(CARCHAR(10), ORDERDATE,103)
FROM ORDERS
WHERE CONVERT(CARCHAR(10), ORDERDATE,103) = '19/10/2017'
Returns: 2017-10-19, 19/10/2017
However it does not work on a range of dates, eg:
WHERE CONVERT(CARCHAR(10), ORDERDATE,103) BETWEEN '17/10/2017' AND '19/10/2017'
Returns:
2014-02-05
2016-12-12
2013-04-30
I know there are hundreds of threads about SQL dates, but they all seem to be regarding reformatting the output and not preparing the input. Do I need to reformat my DD/MM/YYYY inputs?
To query a range of dates, use the DATE-datatype instead of VARCHAR.
If datatype of column ORDERDATE is DATETIME:
WHERE CONVERT(DATE, ORDERDATE) BETWEEN
CONVERT(DATE, '17/10/2017', 103) AND CONVERT(DATE, '19/10/2017', 103)
The conversion of ORDERDATE is only necessary if the start and end date are the same. (in this case, when no conversion is done, only dates with a time value of '00:00:00.000' will be returned)
EDIT:
To omit the conversion of ORDERDATE you can add the time to the dates and convert them to DATETIME instead of DATE, like this:
WHERE ORDERDATE BETWEEN
CONVERT(DATETIME, '19/10/2017 00:00:00') AND CONVERT(DATETIME, '19/10/2017 23:59:59.999');
Or even simpler, like suggested in #Used_By_Already's answer:
WHERE ORDERDATE >= '20171017' AND ORDERDATE < '20171020' --Note the end date is here +1 day
SQL Server date information should NOT be stored "in a format". If if they are literally stored in that format then they are NOT dates as far as the database is concerned (they are "strings" that look like dates) and you will have a nightmare to deal with if they are DD/MM/YYYY because they simply will not behave like dates should.
There are several specific data types in SQL Server for date/time information (datetime, datetime2, smalldatetime, date, time) but ALL of these do not store data in a human readable format at all. Instead they stored as groups of numbers, which will be displayed in a human readable manner, and in your case - by default - you are seeing then in DD/MM/YYYY format. A user in China might prefer to see a date in YYYY.MM.DD or in the USA as MM/DD/YYYY. This is possible because a human format is applied on top of the numbers that are stored before they get displayed.
So. In SQL Server there is a "safe" date literal in the form of 'YYYYMMDD' and this may be used without the need to CONVERT or CAST:
IF your [ORDERDATE] column is a date (or smalldatetime/datetime/datetime2) then this will work:
WHERE ORDERDATE BETWEEN '20171017' AND '20171019'
OR, you may explicitly convert a string to but you need a "style number" to be present to make these fully reliable. Style 103 for example is for DD/MM/YYYY
WHERE ORDERDATE BETWEEN CONVERT(date, '17/10/2017',103) AND CONVERT(date, '19/10/2017',103)
Although "between" has been used in the discussion above a far more reliable method of forming date ranges is to NOT use "between", instead do it this way:
WHERE ORDERDATE >= '20171017' AND ORDERDATE < '20171020'
With this pattern (note the second day is now +1) it does not matter which date precision is stored in the column. For example, see Bad habits to kick : mis-handling date / range queries
I have a column in a table updatedDate - which is a datetime data type.
Data sample:
2017-10-15 18:08:22.000
2017-10-15 18:07:44.000
2017-10-15 18:07:17.000
2017-10-15 18:07:10.000
2017-10-14 18:00:54.000
2017-10-13 17:59:23.000
2017-10-13 17:59:13.000
I would like to display a list of DISTINCT dates, in the format of dd/mm/yyyy, but for the life of me... I can't get it. I would think it should be:
SELECT DISTINCT convert(datetime,updatedDate,103)
FROM [tblStudentCourses]
ORDER BY updatedDate DESC
But it does not actually convert to the 103 format... it just gives it to me as the full date and time format as originally, without any CONVERT.
What I want to get would be:
15/10/2017
14/10/2017
13/10/2017
What am i doing wrong?
Thanks!
To display the date in DD/MM/YYYY format, you can use CONVERT(VARCHAR(10), DateColumn, 103).
To maintain the proper ordering, you can wrap it all in a subquery. For example:
SELECT DisplayDate
FROM (
SELECT DISTINCT
DisplayDate = CONVERT(VARCHAR(10), CAST(UpdatedDate AS DATE), 103),
ActualDate = CAST(UpdatedDate AS DATE)
FROM [tblStudentCourses]
) AS T
ORDER BY ActualDate;
Note: Cast the date column to date if it's datetime like your sample data.
SELECT DISTINCT convert(VARCHAR,updatedDate,103)
FROM [tblStudentCourses]
ORDER BY updatedDate DESC
You should use convert to varchar for formating to various date formats
i have a table called dbo.reminder in that i'm having a column name rdate i have declared that as
NVARCHAR(50)
i want to sort the table using where condition with the present date how can i do that?
i have tried this query
SELECT rdetail,
rid,
rdate = CONVERT(VARCHAR, CONVERT(DATETIME, rdate, 103), 103)
FROM dbo.reminder
where rdate='23/01/2017'
but its not sorting please help me regarding this ?
Do not store date as NVARCHAR. Change your rate datatype to date and try this way
SELECT rdetail,rid,rdate
FROM dbo.reminder
where rdate = convert(date,'23/01/2017' ,103)
Convert the varchar date input to date and check with your rate column.
Better to pass imput in YYYYMMDD or YYYY-MM-DD format which is universal and does not require any conversion
If you cannot change the datatype then
SELECT rdetail,rid,rdate
FROM dbo.reminder
where convert(date,rdate,103) = convert(date,'23/01/2017' ,103)
I am trying to insert date into a table but the date and format of inserted date is messed up. The datatype in the table is Date. My insert script is as below.
insert into Trans(ID, TDate, Description)
values(1, CONVERT(datetime, 25-02-2012, 101), 'Opening')
I am trying to insert in dd/MM/yyyy format and I want it in the same format in my table. But in my table the date is 1894-07-22 !!
I want the date to be inserted exactly as the format I wish and I want to see the inserted date as 25-02-2012 in the table.
What is wrong here ? Can somebody help ?
Try CONVERT(datetime ,'25-02-2012', 103)
use some single quotes around the value
choose your format accordingly (101 is US, meaning mm/dd/yyyy)
see http://msdn.microsoft.com/en-us/library/ms187928(v=sql.100).aspx for more details
you should use single quotes around your date. If you want date format of dd/mm/yyyy format then you will want to use the convert(datetime, '25-02-2012', 103)
insert into Trans(ID,TDate,Description)
values(1,CONVERT(datetime,'25-02-2012',103),'Opening')
if you use convert(varchar, getdate(), 101) the format of the date will be mm/dd/yyyy.
There are several helpful links to use as a reference for datetime conversions:
How to format datetime & date
Tips & tricks SQL Server Date formats
insert into emp
(EMPNO,ENAME,DEPTNO,JOB,SAL,COMM,MGR,HIREDATE)values
(7839,'KING',10,'PRESIDENT',5000,NULL,NULL,'17-11-81')