Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Criteria for identifiers,”-won’t change in[…]
Read moreCategory: Database
T/F? Supertype/subtype relationships can span multiple levels
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.T/F? Supertype/subtype relationships can span[…]
Read moreWhat is a database management system?,”DBMS is a collection of programs that enables users to define, construct
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.What is a database management[…]
Read moreDon’t want name as primary identifier
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Don’t want name as primary[…]
Read moreThe typical flow when designing a database involves:,”Developing an ER diagramMapping the ER diagram into the relational modelNormalizing to avoid anomalies, reduce redundancy, and increase integrityInstantiating the database (e.g.
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.The typical flow when designing[…]
Read moreWhat is a database system?,”Collectively, the database model, the DBMS
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.What is a database system?,”Collectively,[…]
Read moreComposite keys contain …
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Composite keys contain … multiple[…]
Read moreKey properties of relational modeling,”Values are atomic (i.e., a data cell cannot contain multiple values)Values in a given column are of the same domain/type (e.g., float)No rows contain completely duplicate dataThe order of rows and columns is completely irrelevantThe names of every relation are unique and within relations
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Key properties of relational modeling,”Values[…]
Read moreWhat is a data warehouse?,”A unified, central repository of contemporary and historical data accumulated (i.e.
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.What is a data warehouse?,”A[…]
Read moreMultiple attributes as key
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Multiple attributes as key you[…]
Read more