Try this:
For MySQL
DATEDIFF() frinction.
SELECT DATEDIFF(DeliveryDate, CreatedDate) AS Diff_Date FROM MYTABLE
For SQL SERVER
DATEDIFF() function
SELECT DATEDIFF(dd, CreatedDate, DeliveryDate) AS Diff_Date FROM MYTABLE
Frage
I have one table which is having two columns as a DATETIME like following
CreatedDate DeliveryDate Diff_Date
2013-05-12 18:30:00.000 2013-05-17 18:30:00.000 1900-01-06 00:00:00.000
I want Diff_Date for that i did sql query like
select (DeliveryDate - CreatedDate) as Diff_Date from MYTABLE
but i'm getting wrong answer :(
please correct me.
Lösung 2
Try this:
For MySQL
DATEDIFF() frinction.
SELECT DATEDIFF(DeliveryDate, CreatedDate) AS Diff_Date FROM MYTABLE
For SQL SERVER
DATEDIFF() function
SELECT DATEDIFF(dd, CreatedDate, DeliveryDate) AS Diff_Date FROM MYTABLE
Andere Tipps
If you want the number of days as an integer between two values then use:
select datediff(day, DeliveryDate, CreatedDate)
You can try DATEDIFF function.
Use
Select Datediff(DD, SmallDate,BigDate).
try like this:
SELECT DATEDIFF(DeliveryDate ,CreatedDate) as Diff_Date from MYTABLE
For more information you can refer to documentation :http://dev.mysql.com/doc/refman/5.6/en/date-and-time-functions.html#function_datediff
declare @CreatedDate datetime
set @CreatedDate='2013-05-12 18:30:00.000'
declare @DeliveryDate datetime
set @DeliveryDate='2013-05-17 18:30:00.000'
declare @Diff_Date datetime
set @Diff_Date='1900-01-06 00:00:00.000'
--select Datediff(d,@CreatedDate,@DeliveryDate)
select cast((@DeliveryDate-@CreatedDate) as datetime)
it returns same results as date_diff
-- 1900-01-06 00:00:00.000