How can I get the last 12 months from the current date PLUS extra days till 1st of the last month retrieved

Question

Getting the last 12 months from a specific date is easy and can be retrieved by the following command in SQL-server. Its answer is 2014-08-17.

select Dateadd         


        

Answer 1

SELECT dateadd(month,datediff(month,0,getdate())-12,0)

Result is

-----------------------
2014-08-01 00:00:00.000

So the where clause should be

WHERE datecol >=dateadd(month,datediff(month,0,getdate())-12,0)

to get all data starting from jan 01 of last year's same month