Explore the concept of Temporal Tables and their significance in ETL and Data Warehouse processes in this informative PASS Data Community Summit presentation. Delve into the fundamentals of Temporal Tables, their functionality, and implementation techniques. Learn about Slowly Changing Dimensions (SCD) and their relationship with Temporal Tables. Discover how to create and query Temporal Tables using SQL Server Management Studio (SSMS), including methods for accessing current data and historical logs. Examine the advantages and limitations of Temporal Tables, their role in incremental loading, and considerations for rollback operations. Gain insights into best practices and expand your knowledge of this powerful database feature for managing time-based data effectively.
Overview
Syllabus
Intro
Technical Assistance
Reza Rad
Agenda
Why Temporal Tables?
What Is Temporal Tables?
How does it work?
Temporal Table Definition
Changes with temporal table
Querying temporal table
Slowly Changing Dimension
Pros and Cons SCD Type 4
Creating the Table
Three mandatory columns
History table name
SSMS auto generated script
Create Temporal table from SSMS
Querying the current data
Query History Log
Query All the changes
Query Data - Methods
Temporal Tables Pros and Cons
Incremental Load?
Rollback
Considerations
Temporal Tables Limitations
Summary
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Taught by
PASS Data Community Summit
