Types Of Facts?

# Additive: Additive facts are facts that can be summed up through all of the dimensions in the fact table.
# Semi-Additive: Semi-additive facts are facts that can be summed up for some of the dimensions in the fact table but not the others.
# Non-Additive: Non-additive facts are facts that cannot be summed up for any of the dimensions present in the fact table.