Tuesday, June 14, 2011

IMDb

According to Wikipedia, Internet Movie Database (IMDb) is an online database of information related to movies, television shows, actors, production crew personnel, video games and fictional characters featured in visual entertainment media, and it was launched on October 17, 1990, and in 1998 was acquired by Amazon.com.

I queried Jennifer Aniston on IMDb.com and displayed was her biography, contact information, photos, what she is known for, a Filmography section with subsections (actress, soundtrack, producer, director, thanks, self, archive footage), related videos, personal details, did you know section, message boards, and people discussing titles she is known for.

I would say it is a relational database because the information on the page couldn’t possibly be from just one table, but from many different tables linked together through Jennifer Aniston (primary key). The basic principle of the relational model is the Information Principle: all information is represented by data values in relations. In accordance with this Principle, a relational database is a set of relations and the result of every query is presented as a relation. The relational database model consists of tables that are linked together through common fields. Any table can be accessed without having to go through a hierarchy. A table can be linked to any number of parent tables and a parent table can have any number of child tables.

I attached screenshots of the web page.








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