Caché ObjectScript Reference - InterSystems Documentation

System and Other FunctionsDescriptionYou can test whether a namespace is defined by issuing this function. It returns 0 if thespecified namespace is not defined. It returns 1 if the specified namespace is defined.Namespace names are case-insensitive; by convention, they are specified and displayed inall uppercase characters.$ZUTIL(90,10) only recognizes explicit namespace names; it does not recognize impliednamespace names.ExampleIn the following example, the first $ZUTIL(90,10) returns 0 (namespace doesn't exist) andthe second $ZUTIL(90,10) returns 1 (namespace does exist):WRITE !,$ZUTIL(90,10,"FRED") ; a non-existent namespaceWRITE !,$ZUTIL(90,10,"SAMPLES")See Also• ZNSPACE command• $ZUTIL(90,4) Start Up in a Specified Namespace function• $ZNSPACE special variable692 Caché ObjectScript Reference