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ABAP Keyword Documentation →  ABAP Dictionary →  ABAP CDS in ABAP Dictionary →  ABAP CDS - Views →  ABAP CDS - DDL Statements →  ABAP CDS - DEFINE VIEW →  ABAP CDS - SELECT →  ABAP CDS - SELECT, Operands and Expressions →  ABAP CDS - cond_expr 

ABAP CDS - cond_expr, ON, Association

Rules for conditions cond_exp in an ON condition of an association of a CDS view in ABAP CDS:

  • The relational operator IS [NOT] NULL is not allowed.
  • A field of one of the two data sources data_source of the association can be specified for lhs.
  • At least one comparison for equality between a field of the initial data source and a field of the target data source of the association must be performed.
  • No path expressions or other expressions or function calls can be specified.

Other versions: 7.31 | 7.40 | 7.54