# 3NF Vs 2NF, which is more strict

normalization

Which of these is true:

1. If a table is in 2nd normal-form then it must be in 3rd normal-form.
2. If a table is in 3rd normal-form then it must be in 2nd normal-form.

I know only one of them is correct, if it's the first it makes sense. If it's the second -doesn't make any sense to me. Maybe an example?