Database Concurrency and Backup
The discussion assignment provides a forum for discussing relevant topics for this week based on the course competencies covered.
In this assignment, you will study how databases maintain concurrency of data and how to maintain a backup of the database in case of failures.
Using the South University Online Library or the Internet, research on data concurrency and database backup.
Based on your readings and research, respond to the following:
Multiuser databases enable many people to access the data and manipulate it at the same time. Describe the different locking techniques to protect the data and why data locking is necessary. If locking did not exist, could multiuser databases exist? Why or why not?
Which data integrity problems are introduced by multiple users using the same database? Explain why these problems exist and how to protect against them.
Duplicate records can become troublesome in a database. How does the risk of duplicate records increase in multiuser databases?
Data is a valuable asset to most companies. Explain the different backup procedures for databases and explain when you would use them.
Describe the role of a database administrator (DBA). Make sure to include detail about transactions used by DBAs and locks that require DBA intervention.
Submission Details:
For this assignment, make sure you post your initial response to the Discussion Area by the due date assigned.
To support your work, use your course and text readings and also use outside sources. As in all assignments, cite your sources in your work and provide references for the citations in APA format.
Start reviewing and responding to the postings of your classmates as early in the week as possible. Respond to at least two of your classmates. Participate in the discussion by asking a question, providing a statement of clarification, providing a point of view with a rationale, challenging an aspect of the discussion, or indicating a relationship between two or more lines of reasoning in the discussion. Complete your participation for this assignment by the end of the week.
Category: Database Design and Development
The discussion assignment provides a forum for discussing relevant topics for this week based on the course competencies covered.
In this assignment, you will study the various database objects and their functions. Based on your readings for the week and research on the Internet, complete the discussion on the following topics:
Databases can have various objects some of which are tables, queries, forms or views, and reports objects. Each of these has fields or columns. Describe the function of each of these objects and how fields or columns differ from one object to another.
Describe the different relationships that exist between tables, and provide real-world examples of how each of these might be used.
Submission Details:
For this assignment, make sure you post your initial response to the Discussion Area by the due date assigned.
To support your work, use your course and text readings and also use outside sources. As in all assignments, cite your sources in your work and provide references for the citations in APA format.
Start reviewing and responding to the postings of your classmates as early in the week as possible. Respond to at least two of your classmates. Participate in the discussion by asking a question, providing a statement of clarification, providing a point of view with a rationale, challenging an aspect of the discussion, or indicating a relationship between two or more lines of reasoning in the discussion. Complete your participation for this assignment by the end of the week.
The discussion assignment provides a forum for discussing relevant topics for this week based on the course competencies covered.
In this assignment, you will study and apply normalization techniques on entities.
Using the South University Online Library or the Internet, research about normalization and its various forms.
Based on your research and understanding, answer the following questions:
Often, normalization is a difficult topic for students to understand. Become the teacher and describe for the class first normal form (1NF), 2NF, 3NF, and BCNF. Discuss the difference between your posts and those of your classmates.
From what you have learned about normalization and the various forms, name some real-world examples of when you would leave a database in 2NF versus eliminating more anomalies. Discuss your examples with your classmates.
Click here to view an example invoice and post your solution to putting this information into 1NF, 2NF, and 3NF.
Submission Details:
For this assignment, make sure you post your initial response to the Discussion Area by the due date assigned.
To support your work, use your course and text readings and also use outside sources. As in all assignments, cite your sources in your work and provide references for the citations in APA format.