Mastering Slowly Changing Dimensions (SCD) in SQL Server

-1

 Introduction to Slowly Changing Dimensions (SCD)

?What are Slowly Changing Dimensions

.Importance in data warehousing and ETL

Overview of SCD Types (Type 0, 1, 2, 3, 4, and 6)

-2

 Detailed Overview of SCD Types

Type 0: Fixed Dimensions

Type 1: Overwrite Dimensions

Type 2: Historical Tracking Dimensions

Type 3: Limited History

Type 4: History in a Separate Table

Type 6: Hybrid Dimensions

.Conceptual Scenarios for Each Type

-3

 Implementing SCD in SQL Server Using T-SQL  and SSIS

.Preparing a Dimension Table

 :Writing T-SQL for

Type 1: Overwrite existing records

Type 2: Inserting new records and maintaining history

Type 6: Combining Type 1 and Type 2

Handling edge cases (e.g., NULLs, missing keys)

:Hands-on Exercise 

Create an SCD Type 2 implementation for a customer dimension

-4

 Real-World Scenarios

:Designing an SCD strategy for different business use cases

.Best practices for SCD in data pipelines

-5

 Common Pitfalls and Optimization

.Performance tuning for SCD in SQL Server

.Managing large datasets in SCD workflows.

.Monitoring and debugging SCD processes.