Question: Under what circumstances are composite primary keys appropriate
Under what circumstances are composite primary keys appropriate?
Answer to relevant QuestionsWhat is a surrogate primary key, and when would you use one?What is a subtype discriminator? Given an example of its use.Tiny College wants to keep track of the history of all administrative appointments (date of appointment and date of termination). The Tiny College chancellor may want to know how many deans worked in the College of Business ...When is a table in 2NF?Using the descriptions of the attributes given in the figure, convert the ERD shown in Figure P6.1 into a dependency diagram that is in at least 3NF.
Post your question