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This is documentation for Caché & Ensemble. See the InterSystems IRIS version of this content.

For information on migrating to InterSystems IRIS, see Why Migrate to InterSystems IRIS?

Not Operator

Used to perform logical negation on an expression.


result = Not expression


The Not operator syntax has these parts:

result Any numeric variable.
expression Any expression.


The following table illustrates how result is determined:

If expression is Then result is
True False
False True

See Also