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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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$ZDATE response to an invalid value.


[Miscellaneous]    ZDateNull=n


The value n determines how a $ZDATE call responds when triggered by an invalid value:

  • When 1 (true) $ZDATE returns a null value.

  • When 0 (false) $ZDATE returns an error.



Range of Values

0 or 1. The default is 0.

Management Portal

On the page System Administration > Configuration > Additional Settings > Compatibility, in the ZDateNull row, select Edit. Choose true (selected) or false (cleared).