Relational Calculus and Relational Algebra - Computer Science Assignment Help

Assignment Task

Problem 1a

For each relation, indicate all PKs, FKs, and any other relevant constraints (not null, unique, check). Keep in mind that IMDB was one of the web's original crowd-sourced sites, with information being provided by movie fans, not the movie studios. Fans don't necessarily have all the information that is available. Additionally, for old or obscure movies and actors, relevant information might not be known at all.

If you need to make any assumptions about the semantics, please state those.

Problem 1b 

With these table schemas, why can't we have a constraint that an actor isn't in a movie made before they were born?

Problem 1c 

Identify which, if any, tables are junction tables.

Problem 2

Write SQL code to define the four tables (Person, Review, Movie, ActorInMovie).

•  Include the relevant DROP TABLE statements to remove any conflicting table definitions.
•  Use the table and attribute names that were provided in the schemas.
•  Pick appropriate datatypes that work with the provided data and the intended semantics.
•  Declare all PKs.
•  Declare all FKs.
•  Declare any other constraints you listed previously.

Problem 3

Write SQL code to add the provided data to the tables. Rather than retyping all of the data, you should be able to copy from above, paste here, and edit.

This Computer Science Assignment has been solved by our Computer Science experts at My Uni Paper. Our Assignment Writing Experts are efficient to provide a fresh solution to this question. We are serving more than 10000+ Students in Australia, UK & US by helping them to score HD in their academics. Our Experts are well trained to follow all marking rubrics & referencing style.
Be it a used or new solution, the quality of the work submitted by our assignment experts remains unhampered. You may continue to expect the same or even better quality with the used and new assignment solution files respectively. There’s one thing to be noticed that you could choose one between the two and acquire an HD either way. You could choose a new assignment solution file to get yourself an exclusive, plagiarism (with free Turnitin file), expert quality assignment or order an old solution file that was considered worthy of the highest distinctio.