Question

How to get last 3 months records from the table.

SELECT * 
from table 
where month > CURRENT_DATE-120 
  and month < CURRENT_DATE 
order by month;

I have used the above query is it correct? shall I use this for get last 3 month record from the table.

Answer 1

You can use built-in INTERVAL instruction

Check how this works:

SELECT CURRENT_DATE - INTERVAL '3 months'

and you can rewrite your SQL to:

SELECT * from table where date >  CURRENT_DATE - INTERVAL '3 months'

(not checked but this should give you an idea how to use INTERVAL instruction)