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DAT 380 All Discussions

DAT 380 All Discussions PLDZ-13055
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DAT 380 All Discussions

The Latest Version A+ Study Guide

 

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DAT 380 All Discussions Link

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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:

 

DAT 380 Wk 5 Discussion – Information Systems and Database Design

 

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