SQL Date Query include month even if no data

Question

I have a booking database with various dates for each booking. I want to get a count of all bookings in each month e.g.

JAN | 12
FEB | 15
MAR | 53
APR | 25
         


        

Answer 1

The easy way is using a months table because you can have empty months.

create table months (
   month_id integer,
   date_ini datetime,
   date_end datetime
) 

And this are some examples of how create that table automatic

Using select Generate days from date range

This use store procedure in MSQL