When creating a database, we often run into issues where we can’t decide the field type for specific data. Mostly, we get confused about organizing some field types. For example: if we have to store a unique number, we have to choose between a Character Field or an Integer Field. Each field type has its own advantages and disadvantages. One such data is a phone number; when storing a phone number, we have to make sure that the field can keep phone numbers from anywhere in the world.