A lookup table is an array of items for users to select from your application when submitting data to your server. Normally, the lookup table list is used when collecting data with HTML forms and is considered a good design practice when creating applications. For instance, when designing a customer registration form, you might create a list box with `MALE` and `FEMALE` values. In that case, end-users are forced to select an item only from the pre-defined items. This is a good method that you ca......