What is CDS view in SAP with simple explanation

 CDS views in SAP are a way to define and consume data models in a standardized way. Think of them like well-organized blueprints of your data that are easy for different parts of the system to understand and use.

Here's a simplified explanation:

Imagine we  have a big library with thousands of books (your data). Finding a specific book can be difficult if there's no organized system.

**That's where CDS views come in. They're like creating a library catalog (the view) that organizes the books based on different criteria (author, genre, publication year). **

Instead of searching through every single book (data table),we can use the catalog (CDS view) to quickly find the books (data) we need based on the defined criteria.

Example:

Let's say we're working with sales data in SAP. We have different tables for customers, orders, and products.

Without CDS: We would  have to write complex queries joining these tables every time we need information like "total sales for a specific customer."

With CDS: We can define a CDS view called "SalesAnalysis" that combines relevant data from those tables. The view would include fields like:

Customer Name (from the Customer table)

Order Date (from the Order table)

Product Name (from the Product table)

Total Sales Amount (calculated from relevant fields)

Now, we can use this "SalesAnalysis" view to quickly get the information we need without writing complex SQL queries each time.

Key Advantages of CDS Views:

Simplicity: Easier to read and write than traditional database queries.

Reusability: Defined once and can be reused by multiple applications and reports.

Performance: Optimized for efficient data retrieval.

Semantic Richness: Can include annotations and metadata for better understanding.

Remember: This is a simplified explanation. CDS views can be much more complex and powerful, involving different types of joins, associations, and calculations.

To get specific technical details, we might find it helpful to check the official SAP documentation or online resources dedicated to SAP development.