Hi i have a question concerning structuring variable fields using group by. So currently I have 12 variable fields, where a user can input a budget amount in each field, for a total of 12 months. the budgeting can start during any given month, so i have a starting month field, that the user must use to enter the budget for the first month, and then the user can optionally enter budgets for up to 11 additional months after entering the amount in the starting month field. Since the fields are used to enter budget amount, the way I know what month is the starting month is date range that the user inputs, based on that, I know which month the starting month will be. Because, the budget may vary month to month, that is why these monthly budget fields were created.
My question is, since these fields are not labeled as a certain month, instead, they are laebled budget m1, budget m2, budget m3, budget m4, budget m5, etc. what is the best way to structure the values in etl, so that the data is handled as intended?