How to subtract day from datetime.now("d") in SQL Statement?

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I would like to subtract day now -7 for a week and -30 for a month and I want also to track all the dates include before the date now.

For example:

Now is 9/11/2014.

If I subtract -7 it will display.

9/11/2014
9/10/2014
9/9/2014
9/8/2014
9/7/2014
9/6/2014
9/5/2014

I dont know what can I write in my SQL statement.

Thanks for your help. :)

Posted 11-Sep-14 0:46am

XCode2010

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OriginalGriff · Accepted Answer · 2014-09-11T00:54:00

Solution 1

See here: Find All the Days Between Two Dates[^]

Posted 11-Sep-14 0:54am

OriginalGriff

hypermellow · Accepted Answer · 2014-09-11T01:03:00

Hi,

To add days from dates in SQL Server, have a look at the DATEDIFF function.

Which can be used like:

SQL

SELECT
  dateColumn,
  DATEADD(day,-7,dateColumn)
FROM
  yourTable
  ...

UPDATE:
In your query, I would use it something like this:

SQL

SET DATEFORMAT mdy;
DECLARE @StartDate DATETIME = '9/1/2010';
DECLARE @EndDate DATETIME = DATEADD(day, 14, @StartDate);

SELECT 
  Customer_Transaction.Order_Number, 
  Customer_Purchased.ProductID, 
  Customer_Purchased.productName, 
  Customer_Purchased.Branch,
  Customer_Purchased.quantity, 
  Customer_Transaction.Total_Purchased, 
  Customer_Purchased.Date_Purchased
FROM 
  Customer_Purchased INNER JOIN
  Customer_Transaction 
  ON Customer_Purchased.Item_Purchased_Number = Customer_Transaction.Item_Purchased_Number
WHERE 
  (Customer_Purchased.Branch = 'SM Dasmariñas') 
AND 
(Customer_Purchased.Date_Report BETWEEN @StartDate AND @EndDate)

Oh,I've not tested, or ran the above query through a parser, so it probably won't work 'as is', but should give you a start.

Hope it helps.