IT 260 Entire Course Material Describe a scenario where you might use a database rather than a file system to store data. Explain why you would choose to use a database IT 260 Week 1 Individual Short Answer Worksheet. Why should a person developing a relational database use keys in their relational database model? How would you use an Entity Relationship Diagram (ERD) as a part of the design of a database application? Do you think it is necessary to utilize the ERD in the process of designing all types of database applications? Why is it so important to choose the correct Data Type for each field in the database? What kinds of problems could choosing an incorrect Data Type cause? . Discuss some ways that data might be filtered using a query to aid in making decisions. Explain your answer. Identify and describe two scenarios where you might use a form in a database application. Explain why you would use a form in these examples. Identify and discuss the steps you would take to test a database application. Discuss the importance of planning the implementation of a database application. What are some of the pitfalls of not planning for the implementation of a database application?

A scenario where you might prefer to use a database rather than a file system to store data is in a large-scale e-commerce application. In this scenario, you would have a vast amount of data, including customer information, product details, order history, and inventory management. Instead of managing this data in separate flat files or documents, a database would offer several advantages.

One reason to choose a database is the ability to maintain data integrity. A database management system (DBMS) provides mechanisms for enforcing data consistency, such as the use of primary keys and foreign keys. These keys ensure that data relationships are properly defined and maintained, reducing the risk of data inconsistencies or duplicate entries. For example, by using foreign keys, you can ensure that the customer ID in the order table corresponds to a valid customer in the customer table.

Another advantage of a database over a file system is the ability to perform complex queries and data analysis. A DBMS supports the use of structured query language (SQL), which provides powerful querying capabilities. With SQL, you can easily retrieve the required data based on various criteria, aggregate data, and even join data from multiple tables. This is particularly useful in an e-commerce application where you might need to retrieve customer information, order details, and product data simultaneously.

Furthermore, a database allows for efficient data storage and retrieval. Unlike a file system where you would need to write custom code to read and write data, a DBMS handles the storage and retrieval of data using optimized data structures and algorithms. This can result in faster performance and scalability, essential factors for an e-commerce application that needs to handle a large number of concurrent users and process a high volume of data.

Additionally, a database provides a high level of data security and access control. With a DBMS, you can define user roles and permissions to restrict access to sensitive data. This ensures that only authorized users can view and modify certain data, providing an extra layer of security for an e-commerce application where customer information and financial data are involved.

In summary, using a database rather than a file system to store data in a scenario like a large-scale e-commerce application offers several advantages. These include maintaining data integrity, supporting complex queries and data analysis, efficient data storage and retrieval, and providing data security and access control. These benefits make a database a preferable choice for managing a vast amount of data in a structured and efficient manner.

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