Data Modeling Scheme

Technics Publications

Data Modeling Scheme

Steve Hoberman

位教师:Steve Hoberman

包含在 Coursera Plus

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深入了解一个主题并学习基础知识。
初级 等级

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1 周 完成
在 10 小时 一周
灵活的计划
自行安排学习进度

了解顶级公司的员工如何掌握热门技能

Petrobras, TATA, Danone, Capgemini, P&G 和 L'Oreal 的徽标

该课程共有13个模块

Become adept at identifying the characteristics used to distinguish each of the 12 different types of data models. There are three levels of detail (align, refine, and design) and four main modeling mindsets (relational, dimensional, document, and graph), leading to 12 different types of models we can create. Align is where we create the business terms model (conceptual data model) to establish a common business vocabulary. Refine is where we create the logical data model to precisely capture the business requirements. Design is where we create the physical data model to document a technology-optimized version of the business requirements. Relational helps us capture business rules, primarily for operational applications (OLTP) and large integration hubs such as data warehouses. Dimensional helps us capture business questions, primarily for analytical applications (OLAP). Document helps us capture nested structures, used for storing and retrieving highly related content (like documents). Graph helps us capture patterns in the data, used for understanding and predicting connections. We'll cover the 12 types at a high level and provide an example of each.

涵盖的内容

4个视频1个作业

Learn all about the relational BTM and build one too! Explore several examples of the relational BTM to fully experience the characteristics of this type of model. Next, journey through the steps in building a relational BTM. Finally, design a relational BTM.

涵盖的内容

12个视频1篇阅读材料1个作业

Learn all about the dimensional BTM and build one too! Explore several examples of the dimensional BTM to fully experience the characteristics of this type of model. Next, journey through the steps in building a dimensional BTM. Finally, design a dimensional BTM.

涵盖的内容

10个视频1篇阅读材料1个作业

Learn all about the document BTM and build one too! Explore several examples of the document BTM to fully experience the characteristics of this type of model. Next, journey through the steps in building a document BTM. Finally, design a document BTM.

涵盖的内容

9个视频1篇阅读材料1个作业

Learn all about the graph BTM and build one too! Explore several examples of the graph BTM to fully experience the characteristics of this type of model. Next, journey through the steps in building a graph BTM. Finally, design a graph BTM.

涵盖的内容

11个视频1篇阅读材料1个作业

Learn all about the relational LDM and build one too! Explore several examples of the relational LDM to fully experience the characteristics of this type of model. Next, journey through the steps in building a relational LDM. Finally, design a relational LDM. Apply all of the levels of normalization, from First Normal Form (1NF) all the way through Fifth Normal Form (5NF)!

涵盖的内容

14个视频1个作业

Learn all about the dimensional LDM and build one too! Explore several examples of the dimensional LDM to fully experience the characteristics of this type of model. Next, journey through the steps in building a dimensional LDM. Finally, design a dimensional LDM.Compare and contrast the dimensional modeling components of measure, meter, dimension, and grain. Apply the best practices of dimensional modeling through a series of what-to-do and what-not-to-do guidelines for your modeling in analytics applications.Become competent in incorporating different types of measures and dimensions into your models.

涵盖的内容

13个视频1个作业

Learn all about the document LDM and build one too! Explore several examples of the document LDM to fully experience the characteristics of this type of model. Next, journey through the steps in building a document LDM. Finally, design a document LDM.

涵盖的内容

3个视频1篇阅读材料1个作业

Learn all about the graph LDM and build one too! Explore several examples of the graph LDM to fully experience the characteristics of this type of model. Next, journey through the steps in building a graph LDM. Finally, design a graph LDM.

涵盖的内容

3个视频1篇阅读材料1个作业

Learn all about the relational PDM and build one too! Explore several examples of the relational PDM to fully experience the characteristics of this type of model. There are four main techniques used as building blocks in the physical: denormalization, indexing, views, and partitioning. Explain the different ways to denormalize and know the pros and cons of each technique. Contrast the different types of indexes and know the default translations from logical to physical. Define views and know the pros and cons of traditional versus materialized views. Describe horizontal and vertical partitioning, and know when to use each.

涵盖的内容

11个视频1个作业

Learn all about the dimensional PDM and build one too! Explore several examples of the dimensional PDM to fully experience the characteristics of this type of model. Next, journey through the steps in building a dimensional PDM. Finally, design a dimensional PDM. Apply several modeling techniques specific to dimensional physical modeling, including the use of junk and degenerate dimensions.

涵盖的内容

9个视频1个作业

Learn all about the document PDM and build one too! Explore several examples of the document PDM to fully experience the characteristics of this type of model. Next, journey through the steps in building a document PDM. Finally, design a document PDM.

涵盖的内容

2个视频1篇阅读材料1个作业

Learn all about the graph PDM and build one too! Explore several examples of the graph PDM to fully experience the characteristics of this type of model. Next, journey through the steps in building a graph PDM. Finally, design a graph PDM.

涵盖的内容

3个视频1篇阅读材料1个作业

位教师

Steve Hoberman
Technics Publications
0 门课程0 名学生

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