SQL Query to Select * From Table where date is between 7 days ago and now

Question

I am trying to write a simple query in SQL Server (2005 express). The purpose is to only choose data between now and 7 days ago. I cannot seem to get the GETDATE function to work in this example... Any ideas?

**PS - The date time in the column is in EPOCH so I believe the issue may be stemming from here with the datatype...

Select * From TB_Data
where TB_Data.nDate <= GETDATE()-7)

Answer 1

Adding a parenthesis before the GETDATE() function will work.

Select * From TB_Data
where TB_Data.nDate <= (GETDATE() - 7)

With EPOCH, you will need to convert the date before comparing:

DATEADD(s, TB_Data.nDate, '19700101')

So the full query is:

Select * From TB_Data
where DATEADD(s, TB_Data.nDate, '19700101') <= (GETDATE() - 7)