DIMENSIONAL DATA MODELING

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DIMENSIONAL DATA MODELING Online Training Course Content

Project/Program Planning

  • Professional Responsibilities
  • Professional Boundaries
  • An Engineer’s View
  • Beware the Objection Removers
  • What Does the Central Team Do?
  • Avoid DW/BI Isolation
  • Implementation Analysis Paralysis
  • Kimball Methodology
  • Kimball Lifecycle in a Nutshell
  • Think Critically When Applying Best Practices
  • Eight Guidelines for Low Risk Enterprise Data Warehousing

Requirements Definition

  • Gathering Requirements
  • Business Requirements
  • Requirements Gathering Dos and Don’ts
  • Surprising Value of Data Profiling
  • Organizing around Business Processes
  • Focus on Business Processes, Not Business  Departments!
  • Identifying Business Processes
  • Business Process Decoder Ring
  • Relationship between Strategic Business Initiatives and Business Processes Wrapping Up the

Requirements

Data Architecture

  • Making the Case for Dimensional Modeling
  • Is ER Modeling Hazardous to DSS?
  • A Dimensional Modeling Manifesto
  • There Are No Guarantees
  • Enterprise Data Warehouse Bus Architecture
  • Divide and Conquer
  • The Matrix
  • The Matrix: Revisited
  • Drill Down into a Detailed Bus Matrix
  • Integration Instead of Centralization
  • Integration for Real People
  • Data Stewardship : The First Step to Quality And ÂConsistency
  • To Be or Not To Be Centralized
  • Contrast with the Corporate Information Factory
  • Differences of Opinion
  • Don’t Support Business Intelligence with a Normalized EDW

Dimensional Modeling Fundamentals

  • Basics of Dimensional Modeling
  • Fact Tables and Dimension Tables
  • Drilling Down, Up, and Across
  • Myths about Dimensional Modeling
  • Dangerous Preconceptions
  • Fables and Facts

Fact Table Core Concepts

  • Granularity
  • Declaring the Grain
  • Keep to the Grain in Dimensional Modeling
  • Types of Fact Tables
  • Fundamental Grains
  • Factless Fact Tables
  • Factless Fact Tables? Sound Like Jumbo Shrimp?
  • What Didn’t Happen
  • Parent-Child Fact Tables
  • Patterns to Avoid When Modeling Header/Line
  • Item Transactions
  • Fact Table Keys and Degenerates
  • Fact Table Surrogate Keys
  • Reader Suggestions on Fact Table Surrogate Keys
  • Miscellaneous Fact Table Design Patterns
  • Put Your Fact Tables on a Diet
  • Keeping Text Out of the Fact Table
  • Dealing with Nulls in a Dimensional Model

Dimension Table Core Concepts

  • Dimension Table Keys
  • Surrogate Keys
  • Keep Your Keys Simple
  • Date and Time Dimension Considerations
  • It’s Time for Time
  • Surrogate Keys for the Time Dimension
  • Latest Thinking on Time Dimension Tables
  • Smart Date Keys to Partition Fact Tables
  • Handling All the Dates
  • Miscellaneous Dimension Patterns
  • Data Warehouse Role Models
  • Mystery Dimensions
  • De-Clutter with Junk Dimensions
  • Showing the Correlation Between Dimensions
  • Causal (Not Casual) Dimensions
  • Resist Abstract Generic Dimensions
  • Hot-Swappable Dimensions
  • Accurate Counting with a Dimensional Supplement
  • Slowly Changing Dimensions
  • Perfectly Partitioning History with Type SCD
  • Many Alternate Realities
  • Monster Dimensions
  • When a Slowly Changing Dimension Speeds Up
  • When Do Dimensions Become Dangerous?
  • Slowly Changing Dimensions Are Not Always as easy as

More Dimension Patterns and Case Studies

  • Snowflakes, Outriggers, and Bridges
  • A Trio of Interesting Snowflakes
  • Help for Dimensional Modeling
  • Managing Bridge Tables
  • The Keyword Dimension
  • Dealing with Hierarchies
  • Maintaining Dimension Hierarchies
  • Help for Hierarchies
  • Five Alternatives for Better Employee Dimensional Modeling
  • Alternate Hierarchies