No Duplicates option allows you to validate uniqueness of your columns.

In this blog post I will tell you how to use the following validation options: Email, Number of characters.

Today I'd like to tell you about new validation types: Inclusion, Exclusion.

In common usage, validation is the process of checking whether something satisfies a certain criterion or not. Examples include checking whether a statement is true (validity) or not, whether an appliance works as intended or not, whether a computer system is secure or not, or whether computer data is compliant with an open standard or not.

Today I'd like to introduce new validation types: presence, validate only on submit.