HI,
Structured data : It is a well organised data. It is easy to search.The examples of the structured data are name, gender, email id, phone number etc.
Unstructured data : Unstructured data is not well organised and is difficult to search.The examples for the unstructured data are web pages, lyrics of the songs, video files,message of an email etc.It is hard to search a particular song form any one word or sentence. Hence, lyrics ofthe song is an unstructured data.
Regards,
Mayur,
Content support team,
IITM Onlinedegree.