Section C: Updating documentation The following questions require a written explanation that must be included as a separate file from your SQL scripts. You may include Section B, Question 3s written response in this part of the submission. 1) Create a dependency graph that shows dependencies among the updated set of tables, views and stored procedures. 2) Explain why you need to develop dependency graphs which include views and database objects such as stored procedures when we already have logical and physical data models. How do dependency graphs and data models differentiate? 3) Through your recent work, you implemented a new stored procedure, while stored procedures can be helpful, they can also present challenges to data stability. Assume the following scenario is true; A stored procedure that exports health data from the EmployeePersonal table was running, and another stored procedure that reformats emergency contact phone data could also be running. a) Assume we just executed the stored procedure you have created for this assessment while the other two stored procedures were also running and an error occurred. Give an example of a dirty read, a nonrepeatable read, and a phantom read among this group of stored procedures. b) What concurrency control measures are appropriate for the stored procedure that you are creating? c) What concurrency control measures are appropriate for the two other stored procedures?