Read BOL

BOL Count
Returns the number of items in a collection, depending on the collection.

Syntax
Dimension
Dimensions.Count

Returns the number of dimensions in a cube, including the [Measures] dimension.

Level
«Dimension»|«Hierarchy».Levels.Count

Returns the number of levels in a dimension or hierarchy, including the [All] level if applicable.

Set - Syntax 1
Count(«Set»[, ExcludeEmpty | IncludeEmpty])

Returns the number of cells in a set. This syntax allows empty cells to be excluded or included with the use of the ExcludeEmpty or IncludeEmpty flags, respectively.

Set - Syntax 2
«Set».Count
Returns the number of cells in a set, with empty cells included.




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