Multidimensional Expressions Overview

OLE DB Programmer's Reference

Multidimensional OLE DB for OLAP provides a syntax called multidimensional expressions (MDX) to specify a dataset. MDX is a set of macros defined on top of SQL. These macros are generally useful for querying a multidimensional data source, and their precise semantics are defined by means of their structured query language mappings.

Multidimensional expressions are discussed in greater detail in Chapter 25: Multidimensional Expressions. Relevant topics include the following:

• Parts of an MDX Statement
• Axis and Slicer Dimensions
• Establishing Cube Context
• Namespace and Unique Names
• Using the OLE DB Command Object

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