
CHAPTER 13
IN THIS CHAPTER
• Unary operators
• Custom member formulas
• Semiadditive measures
• Order of execution for
dimension calculations
Dimension-Based
MDX Calculations
Assignment operators, calculated members, and
named sets —cube-based calculations discussed in
Chapter 12, “Cube-Based MDX Calculations”—
provide a powerful mechanism, MDX scripts, for
specifying various kinds of custom formulas to
calculate data. However, sometimes it is better to
base your definition of calculations on dimension
members—perhaps by assigning a different formula
to each dimension member.
If a dimension has many members, you would have
to create as many formulas in the script ...