What is CDS association in SAP BC-DWB-DIC - ABAP Dictionary?

SAP Term: CDS association

• Component: BC-DWB-DIC

• Component Name: ABAP Dictionary

• Description: Association in ABAP CDS. CDS associations are defined in CDS DDL in ABAP CDS and themselves define relationships between data sources. They can be evaluated in CDS DDL, CDS DCL, and in ABAP SQL using CDS path expressions.

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• Key Concepts: 
  CDS (Core Data Services) associations are a type of relationship between two CDS entities. They are used to define the relationship between two CDS entities, such as a parent-child relationship or a one-to-many relationship. Associations are defined in the ABAP Dictionary and can be used in CDS views to join two entities together. 
  
  How to use it: 
  In order to use CDS associations, you must first define the association in the ABAP Dictionary. This is done by creating a new association object and specifying the source and target entities, as well as the cardinality of the relationship. Once the association is defined, it can be used in CDS views to join two entities together. 
  
  Tips & Tricks: 
  When defining an association in the ABAP Dictionary, it is important to specify the cardinality of the relationship correctly. This will ensure that the correct data is returned when using the association in a CDS view. 
  
  Related Information: 
  For more information on CDS associations, please refer to SAP Help Portal documentation on Core Data Services (CDS).