I am new to ABAP CDS Views and want to learn how to create and use a CDS View in SAP S/4HANA.

I understand that CDS Views are widely used in modern ABAP development, but I am confused about the complete development process, required annotations, joins, associations, parameters, and authorization checks.

Please help with the following points:

• What is an ABAP CDS View and why is it used in SAP S/4HANA?
• What are the prerequisites for creating a CDS View in ADT/Eclipse?
• How can we create a basic CDS View using define view entity?
• How can we select fields from a database table and apply filters?
• How can we use inner join, left outer join, and associations in a CDS View?
• What is the difference between a join and an association?
• How can we add annotations for labels, UI, analytics, and authorization checks?
• How can we create CDS Views with parameters?
• How can we consume a CDS View in an ABAP program using Open SQL?
• How can we troubleshoot activation errors and performance issues?
• Can someone share a complete working CDS View example with explanation?

A beginner-friendly step-by-step guide with code examples and real project scenarios would be very helpful.