AggregationUsage (Dimension Interface)
[!NOTA]
Esta característica se quitará en la versión siguiente de Microsoft SQL Server. No utilice esta característica en nuevos trabajos de desarrollo y modifique lo antes posible las aplicaciones que actualmente la utilizan.
The AggregationUsage property of the Dimension interface specifies how aggregations are to be designed for the dimension levels.
Applies To:clsCubeDimension, clsPartitionDimension
Access
Access depends on the value of the ClassType property of the object.
Class type |
Access |
|---|---|
clsCubeDimension |
R/W |
clsPartitionDimension |
R |
Notas
When aggregations are designed for a dimension, the value of this property determines which levels of a dimension may have aggregations created for them. The following table describes how the value of this property affects the consideration of levels for aggregation.
Aggregation usage |
Description |
|---|---|
dimAggUsageCustom |
Aggregations are created only for those levels whose EnableAggregations property is set to True. |
dimAggUsageDetailsOnly |
Aggregations are created only for the lowest level in the dimension. |
dimAggUsageStandard |
All levels are considered by the aggregation design algorithm. |
dimAggUsageTopOnly |
Aggregations are created only for the top (All) level. |
dimAggUsageTopAndDetailsOnly |
Aggregations are created only for the top (All) and lowest levels in the dimension. |
[!NOTA]
For virtual dimensions, AggregationUsage is read-only and automatically set to dimAggUsageStandard. An error is raised if you attempt to set this property on a virtual dimension.
Ejemplo
The following example changes the aggregation behavior of the Product dimension for the Sales cube in the FoodMart 2000 database to create aggregations only for the topmost level, and then it updates and reprocesses the Sales cube:
Dim dsoServer As New DSO.Server
Dim dsoDB As DSO.MDStore
Dim dsoCube As DSO.MDStore
Dim dsoDim As DSO.Dimension
' Connect to local Analysis server.
dsoServer.Connect "LocalHost"
' Open FoodMart 2000 database.
Set dsoDB = dsoServer.MDStores("FoodMart 2000")
' Open the Sales cube.
Set dsoCube = dsoDB.MDStores("Sales")
' Open the Product dimension in the Sales cube.
Set dsoDim = dsoCube.Dimensions("Product")
' Set the dimension to create aggregations only
' for the topmost (or All) level.
dsoDim.AggregationUsage = dimAggUsageTopOnly
' Update the cube.
dsoCube.Update
' Process the cube.
dsoCube.Process processFull
' Clean up.
Set dsoDim = Nothing
Set dsoCube = Nothing
Set dsoDB = Nothing
dsoServer.CloseServer
Set dsoServer = Nothing