Stop Using Old DDIC Views | Here's Why CDS Is Better

Welcome to this comprehensive introduction to Core Data Services (CDS)! In this video, we explore the fundamental concepts of CDS views, their role in the "Code-to-Data" paradigm, and why they are essential for modern SAP development.
What You Will Learn:
Core Concepts: Understand why CDS is based on a top-down approach and how it functions as an extension of Open SQL in ABAP.
Extended Languages: Learn about the four key extensions in CDS: DDL (Data Definition), DQL (Data Query), DEL (Data Expression), and DCL (Data Control).
Semantically Rich Models: Discover how Annotations drive functionality to create rich data models in SAP S/4HANA.
Prerequisites: Why you don't need to be a pro in ABAP to start learning and creating CDS views.
Platform Compatibility: Learn how you can create CDS views even if your company isn't on HANA DB, though using HANA is recommended to leverage its full potential.
CDS Views vs. DDIC Views (SE11):
We break down the critical differences that make CDS views superior to traditional Data Dictionary views:
Calculations & Aggregations: Unlike DDIC views, CDS views can perform complex calculations, groupings, and aggregations directly.
Joins & Unions: CDS supports a vast number of joins and unions, far exceeding the limited options in SE11.
Nested Views: CDS supports "View on a View" (nested views), which is not possible with DDIC views.
Execution Level: While DDIC views are processed at the Application Server level, CDS views are executed at the HANA Database level for maximum performance.
Development Tools: Learn why you must use Eclipse or HANA Studio instead of transaction SE11 to build CDS views.
Comparison with AMDP:
We also briefly touch upon the difference between CDS and AMDP, specifically how CDS views return a single result set compared to the multiple internal tables AMDP can handle.

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