Group by month in SQLite

Question

I have an SQLite database which contains transactions, each of them having a price and a transDate.

I want to retrieve the sum of the transactions

Answer 1

You can group on the start of the month:

select  date(DateColumn, 'start of month')
,       sum(TransactionValueColumn)
from    YourTable
group by 
        date(DateColumn, 'start of month')