log_exp - NOT
... NOT log_exp ...
The negation of a logical expression
forms a new logical expression, which is false, if the logical expression
log_exp is true and vice versa.
- The operator
NOTprovides a stronger link than
- The Boolean operator
NOTmust not be confused with the addition NOT on
IN. The following syntax is possible:
... NOT operand NOT IN seltab ...
NOTis a Boolean operator which negates a logical expression with the addition
NOT. The second
NOTis an addition in a logical expression. This is made clear with the brackets around the logical expression:
... NOT ( operand NOT IN seltab ) ...