I'm creating a mobile app that keeps your expenses monthly, im the homescreen have a form for you easily enter your spending, but it should add the expenses and create if it does not exist related to a day, wanted to know how to make the sum without creating another table,

tanks bros

Hello Lucas

Please find the attached .oml and check if this is similar to what you were looking for

Please bear in mind that it is very simple .oml just to replicate the issue you reported