What is the difference between field size and field range?

Field size refers to the total number of possible values that a field can take, often determined by the data type (e.g., a 32-bit integer can represent values from -2,147,483,648 to 2,147,483,647). Field range, on the other hand, denotes the specific subset of values that are valid or acceptable for a particular field within a given context, which may be narrower than the full field size. For example, while the field size for a date field might allow any date value, the field range could limit it to a specific year or date format.