- Premium Academic Help From Professionals
- +1 323 471 4575
- academicperfect@gmail.com
One-to-one database relationships
One-to-one database relationships
Order ID 53003233773 Type Essay Writer Level Masters Style APA Sources/References 4 Perfect Number of Pages to Order 5-10 Pages Description/Paper Instructions
One-to-one database relationships: When to use them
One-to-one relationships in database design are used when two entities in a system have a unique and singular relationship with each other. In such relationships, each record in one entity (table) is associated with only one record in another entity, and vice versa. In this article, we will discuss when to use one-to-one relationships in database design and the benefits and drawbacks of using them.
One-to-one relationships are typically used in scenarios where data needs to be segregated for reasons of normalization, performance, or security. Some common examples of one-to-one relationships include:
Employee and Employee Details
In a typical employee database, employee data such as name, ID, address, etc., can be stored in one table, while additional data such as salary, job title, performance reviews, and other confidential information can be stored in a separate table. In this scenario, the one-to-one relationship ensures that employee information remains separate from confidential data.
Customer and Customer Details
Similar to the above example, a customer database may require storing personal information such as name, address, email, and phone number in one table, while sensitive information such as credit card details, transaction history, and billing information in a separate table.
Student and Student Details
In an education system, student data such as name, ID, and enrollment date can be stored in one table, while academic performance, test scores, and academic history can be stored in another table.
Benefits of One-to-One Relationships:
Normalization: One-to-one relationships help in reducing data redundancy and increasing data integrity. By separating data that does not belong together, it becomes easier to maintain data accuracy and consistency.
Security: One-to-one relationships can be used to control access to sensitive data. For example, sensitive data such as social security numbers or credit card details can be stored in a separate table with stricter access controls.
Performance: One-to-one relationships can help to improve database performance by reducing the size of individual tables. This can lead to faster query response times and more efficient use of system resources.
Drawbacks of One-to-One Relationships:
Increased complexity: One-to-one relationships can make database design more complex and difficult to manage. It may require additional tables and foreign keys to maintain relationships, which can be a challenge to set up and maintain.
Reduced flexibility: One-to-one relationships can limit the flexibility of the database design. For example, if a new field needs to be added to the table, it may require changes to multiple tables, leading to increased maintenance efforts.
Cost: One-to-one relationships may require additional storage space, which can increase the overall cost of database implementation.
Conclusion:
One-to-one relationships are useful in situations where data needs to be segregated or secured, and where normalization is a priority. They offer several benefits such as improved data integrity, performance, and security, but they also come with some drawbacks such as increased complexity, reduced flexibility, and increased cost. When designing a database, it is important to evaluate the specific requirements of the system and decide whether a one-to-one relationship is necessary or not.
One-to-one database relationships
RUBRIC
QUALITY OF RESPONSE NO RESPONSE POOR / UNSATISFACTORY SATISFACTORY GOOD EXCELLENT Content (worth a maximum of 50% of the total points) Zero points: Student failed to submit the final paper. 20 points out of 50: The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking. 30 points out of 50: The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately. Elements of the required response may also be lacking. 40 points out of 50: The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples. The answer is complete. 50 points: The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples. No aspects of the required answer are missing. Use of Sources (worth a maximum of 20% of the total points). Zero points: Student failed to include citations and/or references. Or the student failed to submit a final paper. 5 out 20 points: Sources are seldom cited to support statements and/or format of citations are not recognizable as APA 6th Edition format. There are major errors in the formation of the references and citations. And/or there is a major reliance on highly questionable. The Student fails to provide an adequate synthesis of research collected for the paper. 10 out 20 points: References to scholarly sources are occasionally given; many statements seem unsubstantiated. Frequent errors in APA 6th Edition format, leaving the reader confused about the source of the information. There are significant errors of the formation in the references and citations. And/or there is a significant use of highly questionable sources. 15 out 20 points: Credible Scholarly sources are used effectively support claims and are, for the most part, clear and fairly represented. APA 6th Edition is used with only a few minor errors. There are minor errors in reference and/or citations. And/or there is some use of questionable sources. 20 points: Credible scholarly sources are used to give compelling evidence to support claims and are clearly and fairly represented. APA 6th Edition format is used accurately and consistently. The student uses above the maximum required references in the development of the assignment. Grammar (worth maximum of 20% of total points) Zero points: Student failed to submit the final paper. 5 points out of 20: The paper does not communicate ideas/points clearly due to inappropriate use of terminology and vague language; thoughts and sentences are disjointed or incomprehensible; organization lacking; and/or numerous grammatical, spelling/punctuation errors 10 points out 20: The paper is often unclear and difficult to follow due to some inappropriate terminology and/or vague language; ideas may be fragmented, wandering and/or repetitive; poor organization; and/or some grammatical, spelling, punctuation errors 15 points out of 20: The paper is mostly clear as a result of appropriate use of terminology and minimal vagueness; no tangents and no repetition; fairly good organization; almost perfect grammar, spelling, punctuation, and word usage. 20 points: The paper is clear, concise, and a pleasure to read as a result of appropriate and precise use of terminology; total coherence of thoughts and presentation and logical organization; and the essay is error free. Structure of the Paper (worth 10% of total points) Zero points: Student failed to submit the final paper. 3 points out of 10: Student needs to develop better formatting skills. The paper omits significant structural elements required for and APA 6th edition paper. Formatting of the paper has major flaws. The paper does not conform to APA 6th edition requirements whatsoever. 5 points out of 10: Appearance of final paper demonstrates the student’s limited ability to format the paper. There are significant errors in formatting and/or the total omission of major components of an APA 6th edition paper. They can include the omission of the cover page, abstract, and page numbers. Additionally the page has major formatting issues with spacing or paragraph formation. Font size might not conform to size requirements. The student also significantly writes too large or too short of and paper 7 points out of 10: Research paper presents an above-average use of formatting skills. The paper has slight errors within the paper. This can include small errors or omissions with the cover page, abstract, page number, and headers. There could be also slight formatting issues with the document spacing or the font Additionally the paper might slightly exceed or undershoot the specific number of required written pages for the assignment. 10 points: Student provides a high-caliber, formatted paper. This includes an APA 6th edition cover page, abstract, page number, headers and is double spaced in 12’ Times Roman Font. Additionally, the paper conforms to the specific number of required written pages and neither goes over or under the specified length of the paper.
GET THE PROFESSIONAL ESSAY CUSTOMIZED FOR YOUY NOW – CLICK NOW!
CLICK ON THE LINK HERE: https://phdwriters.us/orders/ordernow
Also, you can place the order at www.collegepaper.us/orders/ordernow / www.phdwriters.us/orders/ordernow
Do You Have Any Other Essay/Assignment/Class Project/Homework Related to this? Click Here Now [CLICK ME]and Have It Done by Our PhD Qualified Writers!!
