Subtract one day from datetime

Question

I have a query to fetch date diff between 2 datetime as :

SELECT DATEDIFF(DAY, @CreatedDate , GETDATE())

Ex :

SELECT DATEDIFF(DAY, \'2013-03-13 00:00:00.00         


        

Answer 1

To be honest I just use:

select convert(nvarchar(max), GETDATE(), 112)

which gives YYYYMMDD and minus one from it.

Or more correctly

select convert(nvarchar(max), GETDATE(), 112) - 1 

for yesterdays date.

Replace Getdate() with your value OrderDate

select convert(nvarchar (max),OrderDate,112)-1 AS SubtractDate FROM Orders

should do it.

Answer 2

To simply subtract one day from todays date:

Select DATEADD(day,-1,GETDATE())

(original post used -7 and was incorrect)

Answer 3

I am not certain about what precisely you are trying to do, but I think this SQL function will help you:

SELECT DATEADD(day,-1,'2013-04-01 16:25:00.250')

The above will give you 2013-03-31 16:25:00.250.

It takes you back exactly one day and works on any standard date-time or date format.

Try running this command and see if it gives you what you are looking for:

SELECT DATEADD(day,-1,@CreatedDate)