Last 365 days from a value

Question

Hi,
I need to select last 365 days from the value returning from the below query
(SELECT MAX(MONTH_END_DT) FROM CONTROL.CTL_BATCH_CONTROL).
MONTH_END_DT - its a date column in table CTL_BATCH_CONTROL.
Can anyone help me in this plz.
Thanks
Radha K

Answer 1

Two alternatives:
If you're really only after 365 days ago, even in a leap year:
select col1, col2, ....
from   (select col1, col2, ... max(month_end_dt) over () max_month_end_dt
        from   control.ctl_batch_control)
where  month_end_dt >= max_month_end_dt - 365;If you're actually after 1 year ago:
select col1, col2, ....
from   (select col1, col2, ... max(month_end_dt) over () max_month_end_dt
        from   control.ctl_batch_control)
where  month_end_dt >= add_months(max_month_end_dt, -12);