Calculations in Multidimensional Models
Use the Calculations tab of Cube Designer to create calculated members, named sets, and other Multidimensional Expressions (MDX) calculations.
The Calculations tab has the following three panes:
The Script Organizer pane lists the calculations in a cube. Use this pane to create, organize, and select calculations for editing.
The Calculation Tools pane provides metadata, functions, and templates with which to create calculations.
The Calculation Expressions pane supports a form view and a script view.
For more information about MDX scripting, see Introduction to MDX Scripting in Microsoft SQL Server 2005, and see the Additional Resources section on the SQL Server 2005 – Analysis Services page on the Microsoft TechNet Web site. For more information about performance issues related to cube design, see the SQL Server 2005 Analysis Services Performance Guide.
To create a new calculation, on the Calculations tab of Cube Designer, on the Cube menu, click either New Calculated Member, New Named Set, or New Script Command, depending on the type of calculation you want to create. You can also click any of the corresponding buttons on the toolbar, or right-click anywhere in the Script Organizer pane and then click one of the commands on the shortcut menu. This action adds a new calculation to the Script Organizer pane and displays fields for it in the calculations form in the Calculations Expressions pane. If you create a new script, this action opens the Script view in the Calculation Expressions pane. For more information about building the three types of calculations, see Create Calculated Members, Create Named Sets, and Define Assignments and Other Script Commands.
Edit scripts in the Calculation Expressions pane of the Calculations tab. The Calculation Expressions pane has two views, Script view and Form view. The Form view shows the expressions and properties for a single command. When you edit an MDX script, an expression box fills the entire Form view.
The Script view provides a code editor in which to edit the scripts. While the Calculation Expressions pane is in Script view, the Script Organizer pane is hidden. The Script view provides color coding, parenthesis matching, auto-complete, and MDX code regions. The MDX code regions can be collapsed or expanded to facilitate editing.
You can switch between the Form view and the Script view by clicking the Cube menu, pointing to Show Calculations in, and then clicking Script or Form. You can also click either Form view or Script view on the toolbar.
Calculations are solved in the order listed in the Script Organizer pane. You can reorder the calculations by right-clicking any calculation and then clicking Move Up or Move Down on the shortcut menu. You can also click a calculation and then click the Move Up or Move Down button on the toolbar.
You can override this order manually for calculated cells and calculated members. For more information about pass order and solve order, see Understanding Pass Order and Solve Order (MDX).
To delete an existing calculation, on the Calculations tab, in the Script Organizer pane, select the calculation to be deleted, and then click Delete on the Edit menu or click the Delete icon on the toolbar. You can also right-click the calculation in the Script Organizer pane and select Delete from the short-cut menu.