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ABAP Keyword Documentation →  ABAP − Reference →  Program Flow Logic →  Expressions and Functions for Conditions →  log_exp - Logical Expressions →  rel_exp - Predicates 

rel_exp - Predicate Expressions

Other versions: 7.31 | 7.40 | 7.54

Syntax


...   {operand  IS [NOT] INITIAL} 
    | {ref      IS [NOT] BOUND}
    | {oref     IS [NOT] INSTANCE OF}
    | {<fs>     IS [NOT] ASSIGNED}
    | {para     IS [NOT] SUPPLIED} ...

Effect

A predicate expression uses the predicate operator IS to produce a truth value from the state of an operand.


Notes

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rel_exp - IS INITIAL

rel_exp - IS BOUND

rel_exp - IS INSTANCE OF

rel_exp - IS ASSIGNED

rel_exp - IS SUPPLIED