- Description
DAT 380 All Discussions
The Latest Version A+ Study Guide
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DAT 380 All Discussions Link
https://hwsell.com/category/dat-380/
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DAT 380 Wk 1 Discussion – A New Wave of Data
Post a total of 3 substantive responses over 2 separate days for full participation. This includes your initial post and 2 replies to classmates or your faculty member.
Due Thursday
Over the past few years, a new wave of data has emerged. Such data have always existed but did not receive the attention they receive today. These data come from multiple and varied sources, such as website logs, website posts in social sites, and machine generated information (GPS, sensors, etc.).
Respond to the following in a minimum of 175 words:
- Discuss some of the characteristics of a NoSQL database.
- Include specific examples of popular online companies, such as Amazon; which uses NoSQL databases.
Due Monday
Post 2 replies to classmates or your faculty member. Be constructive and professional.
DAT 380 Wk 2 Discussion – Entity Relationships
Post a total of 3 substantive responses over 2 separate days for full participation. This includes your initial post and 2 replies to classmates or your faculty member.
Due Thursday
This week’s content presents a balanced view of Entity Relationship Modeling (ERM). On one hand, a pragmatic focus on the aspects of the Entity Relationship Diagram (ERD) that have a direct impact on the design and implementation of the database must be considered. On the other hand, properly documenting the business needs that the database must support is equally important.
Respond to the following in a minimum of 175 words:
- Compare Crow’s Foot and Chen notation ERDs.
- Discuss some of the differences, strengths, and weaknesses of the two notations.
Due Monday
Post 2 replies to classmates or your faculty member. Be constructive and professional.
DAT 380 Wk 3 Discussion – Database Design and Table Structure
Post a total of 3 substantive responses over 2 separate days for full participation. This includes your initial post and 2 replies to classmates or your faculty member.
Due Thursday
Good database design must be matched to good table structure. Normalization is a very important ingredient in database design.
Respond to the following in a minimum of 175 words:
- Why are some table structures considered to be bad and others good?
- How do you recognize the difference between good and bad table structures?
- What effect does normalization have on creating good tables and why should you learn so many normalization rules?
Due Monday
Post 2 replies to classmates or your faculty member. Be constructive and professional.
DAT 380 Wk 4 Discussion – Subquery and Correlated Subquery Differences
Post a total of 3 substantive responses over 2 separate days for full participation. This includes your initial post and 2 replies to classmates or your faculty member.
Due Thursday
Respond to the following in a minimum of 175 words:
- Discuss the differences between a regular subquery and a correlated subquery.
- Provide an example of one or both subqueries.
Due Monday
Post 2 replies to classmates or your faculty member. Be constructive and professional.
DAT 380 Wk 5 Discussion – Information Systems and Database Design
Post a total of 3 substantive responses over 2 separate days for full participation. This includes your initial post and 2 replies to classmates or your faculty member.
Due Thursday
Respond to the following in a minimum of 175 words:
- What is the relationship between a database and an information system?
- What impact does this relationship have on database design?
- Respond to one or both of the following statements:
- It is impossible to produce good information from poor data.
- No matter how sophisticated the application programs are, it is impossible to use good application programs to overcome the effects of bad database design.
Due Monday
Post 2 replies to classmates or your faculty member. Be constructive and professional.