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InterSystems MDX Reference
InterSystems: The power behind what matters   

This section discusses identifiers in InterSystems MDX.
MDX Identifiers and Allowed Variations
Every cube, subject area, relationship, dimension, hierarchy, level, member, property, and measure has an identifier.
Each MDX identifier has one of the following forms:
name is not case-sensitive, but key value is.
Note that name and key value are not expressions. That is, you cannot replace them with string-valued expressions.