Need guidance towards evaluative boolean logic tree

Question

I can\'t seem to find a pointer in the right direction, I am not even sure what the terms are that I should be researching but countless hours of googling seem to be spinning me

Answer 1

I have to say that this is why database engines are built. You can do all that you require with set logic and you may even arrive at the result you are looking for, but theses are standard problems solved by databases and SQL. You can also look at linq for a in code solution.