A structured UDT is a collection of fields called attributes, each of which is defined as a predefined data type or other UDT (which allows nesting).
Address Example
If Address is defined as a UDT with sub-fields for Street, Apartment, City, State, and Zip Code, provide Transform functions to convert input and output data into and from an Address object. Input and output data as a string with all the fields concatenated, using fixed field lengths or a delimiter such as a comma between them.