What two conditions must be met before an entity can be classified as a weak entity? Give an example of a weak entity.
Answer to relevant QuestionsGiven the business rule “an employee may have many degrees,” discuss its effect on attributes, entities, and relationships. Discuss two ways in which the 1:M relationship between COURSE and CLASS can be implemented. The local city youth league needs a database system to help track children that sign up to play soccer. Data needs to be kept on each team and the children that will be playing on each team and their parents. Also, data ...Create an ERD based on the Crow’s Foot model, using the following requirements:An INVOICE is written by a SALESREP. Each sales representative can write many invoices, but each invoice is written by a single sales ...What is the difference between partial completeness and total completeness?
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