With respect to relational databases, briefly define the terms row and field.
Answer to relevant QuestionsWhat is a primary key? Are duplicate primary keys allowed? Why or why not?What is referential integrity? Describe how it is enforced when a new foreign key value is created, when a row containing a primary key is deleted, and when a primary key value is changed.How is a one-to-many relationship on a class diagram represented in an object database?Why might all or part of a database need to be replicated in multiple locations?This chapter did not discuss network databases in detail, but some database textbooks discuss them. Investigate the network database model and its use of pointers to represent relationships among record types. In what ways ...
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