Which of the following are features of Core Data Services? Note: There are 3 correct answers to this question.

Which of the following are features of Core Data Services? Note: There are 3 correct answers to this question.

A. Inheritance

B. Associations

C. Annotations

D. Delegation

E. Structured Query Language (SQL)

View Answer

Answer: BCE

Explanation:

Core Data Services (CDS) is a framework for defining and consuming semantically rich data models in SAP HANA. CDS supports various features that enhance the capabilities of SQL and enable developers to create data models that are optimized for performance, readability, and extensibility12. Some of the features of CDS are:

Associations: Associations are a way of defining relationships between CDS entities, such as tables or views. Associations enable navigation and path expressions in CDS queries, which allow accessing data from related entities without explicit joins. Associations also support cardinality, referential constraints, and cascading options34.

Annotations: Annotations are a way of adding metadata to CDS entities or their elements, such as fields or parameters. Annotations provide additional information or instructions for the CDS compiler, the database, or the consumers of the CDS views. Annotations can be used for various purposes, such as defining access control, UI rendering, OData exposure, or search capabilities5 . Structured Query Language (SQL): SQL is the standard language for querying and manipulating data in relational databases. CDS is based on SQL and extends it with additional features and syntax. CDS supports SQL features such as joins, aggregations, filters, expressions, functions, and subqueries. CDS also supports SQL Script, which is a scripting language for stored procedures and functions in SAP HANA .

You cannot do any of the following:

Inheritance: Inheritance is not a feature of CDS. Inheritance is a concept in object-oriented programming that allows a class to inherit the properties and methods of another class. CDS does not support object-oriented programming or classes.

Delegation: Delegation is not a feature of CDS. Delegation is a concept in object-oriented programming that allows an object to delegate some of its responsibilities to another object. CDS does not support object-oriented programming or objects.

Reference: 1: Core Data Services (CDS) | CAPire 2: Core Data Services [CDS] in SAP S/4 HANA | SAP

Blogs 3: Associations in Core Data Services (CDS) | SAP Help Portal 4: [CDS DDL – Association – ABAP

Keyword Documentation – SAP Online Help] 5: [Annotations in Core Data Services (CDS) | SAP Help

Portal] : [CDS DDL – Annotation – ABAP Keyword Documentation – SAP Online Help] : [Structured

Query Language (SQL) | SAP Help Portal] : [CDS DDL – SQL Features – ABAP Keyword Documentation –

SAP Online Help] : [Object-Oriented Programming in ABAP | SAP Help Portal]