Will do my best to be clear.
I'm working with Osiris DB for the first time and it's very different from what I'm used to.
I'm not quite sure how to modify an element in a database except for removing it and replacing it and I'm not sure how to store variables.
So for example, I expected this line to give _Sum the value of 3 but it tells me it's an unbound variable.
I'm not looking for code or anything, I just want to understand the rules for declaring variables and modifying databases .
If anyone can help I would really appreciate it.