Showing posts with label MDX. Show all posts
Showing posts with label MDX. Show all posts

Thursday, August 12, 2010

MDX (Multidimensional Expressions)

It’s similar to SQL for relational databases.
MDX can navigate multidimensional data and return data in more than two dimensions.
MDX allows to,


  • Query multidimensional data
  • Build dimensions and cubes
  • Create calculated members
  • Define security restrictions

And more…
SQL queries can return data in two dimensions only whereas MDX queries can return data in more than two dimensions called a cellset.
Cellsets are typically flattened into two dimensions for display but an intersection of the various dimensions to the value. E.g. three dimensional cube.