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ABENCDS_COND_EXPR_ON_ASSOC - CDS COND EXPR ON ASSOC

- cond_expr, ON, CDS Association

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

• All comparison operators are allowed.

• A field of one of the two data sources data_source of the CDS association can be specified for lhs.

• A field of both data sources data_source of the CDS association, a literal with optional domain prefix, a parameter, or a session variable can be specified for rhs (with the exception of the operator LIKE).

• A field of the association source can also be specified by an alternative element name (defined using AS) of the current CDS view.

• At least one comparison for equality between a field of the initial data source and a field of the association target of the CDS association must be performed.

• No path expressions or other expressions or function calls can be specified.