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

If you want all the records since the first day of the current month last year, then you can use:

where  >= dateadd(day, 1 - day(dateadd(month, -12, getdate()),
                            dateadd(month, -12, getdate()))

For all days except Feb 29th, you can use the simpler:

where  >= dateadd(day, 1 - day(getdate()),
                            dateadd(month, -12, getdate))