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ISUNKNOWNThis function replaces a value if that value is unknown. Syntax
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Examples Suppose the following data model.
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IFUNKNOWNAn alternative notation of the ISUNKOWN function, which increases readability especially for long expressions. This function replaces a value if that value is unknown. The IFUNKNOWN function takes precendence over any other binary operator (except for the "NOT" operator). Syntax
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Examples Suppose the following data model.
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IS AUse this function to check the type of an instance. The function returns TRUE if the selected instance is of the specified entity. Syntax
Return type
Examples Suppose a domain model in which there is a singleton entity If you want to determine the number of bedrooms is the residence:
If you want to determine the number of bathrooms is the residence:
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