Grouping by date, with 0 when count() yields no lines?

Given that you don't have the dates in the table, you need a way to generate them. You can use the generate_series function.

This query will give you the output what your are looking for.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.