SAP LOGEXP NOT documentation, setup help and example usage

ARTICLE

log_exp - NOT

Syntax
ABAP_KEY ... NOT log_exp ...

Effect
The negation of a logical expression log_exp using NOT creates a new logical expression that is false if the logical expression log_exp is true and vice versa.

Notes

The operator NOT is a stronger join than AND , OR , and EQUIV .

The Boolean operator NOT must not be confused with the addition NOT of the relational operators BETWEEN , IN , and the predicate operator IS . The following syntax is one possible example:

... NOT operand NOT IN seltab ...
The first NOT is a Boolean operator that negates a comparison expression. The second NOT is a part of the comparison expression withe the relational operator IN . This is made clear using parentheses around the comparison expression:
... NOT ( operand NOT IN seltab ) ...