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This is documentation for Caché & Ensemble.

For information on converting to InterSystems IRIS, see the InterSystems IRIS Adoption Guide and the InterSystems IRIS In-Place Conversion Guide, both available on the WRC Distributions page (login required).

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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