I need to bring a listing of executives and their total sales per month, this is all regardless of having a sale in the month or not.
For years I've been focused on front-end and never done anything with sql, can you help me?
vendedor janeiro fevereiro marco abril maio junho julho agosto ...
vendedor1 300 400 800 0 0 0 0 0
vendedor2 100 50 30 0 100 50 0 0