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ContentType (clsColumn)

HinweisHinweis

  Diese Funktion wird in der nächsten Version von Microsoft SQL Server entfernt. Verwenden Sie diese Funktion beim Entwickeln neuer Anwendungen nicht, und planen Sie so bald wie möglich das Ändern von Anwendungen, in denen es zurzeit verwendet wird.

The ContentType property of an object of ClassType clsColumn describes the content type of a column's data.

Data Type

String

Access

Read/write for columns with a SubClassType of sbclsRegular whose IsKey and IsParentKey properties are False, read-only for all others.

Hinweise

For columns whose IsKey or IsParentKey properties are set to True and columns with a SubClassType of sbclsNested, this property returns an empty string.

This property suggests the column contents to the mining model. This suggestion is used to optimize the mining model's MiningAlgorithm property and must be specified for each column.

Supported values for this property are listed in the MINING_SERVICESschema rowset in the SUPPORTED_TYPE_FLAGS column.

Examples

The following example demonstrates how to create a new column and set its ContentType property to CONTINUOUS:

'------------------------------------------------------------------------
' Add a new column to the mining model called Unit Sales and relate
' this column to the Sales cube measure of the same name. Set the
' columns data type to Integer, and identify the data content in it as
' being continous and logarithmically normalized. Finally, identify this
' column as being predictable.
' Assume the existence of a DSO Cube object, dsoCb.
'------------------------------------------------------------------------
    'Add another column to the model.
    Set dsoColumn = dsoDmm.Columns.AddNew("Unit Sales")
    'Identify this column as being based on the Unit Sales measure.
    Set dsoColumn.SourceOlapObject = dsoCb.Measures("Unit Sales")
    'Identify the column type.
    dsoColumn.DataType = adInteger
    'Identify this column's content as being continuous.
    dsoColumn.ContentType = "CONTINUOUS"
    'Identify the statistical distribution of this data.
    dsoColumn.Distribution = "LOG_NORMAL"
    'Identify the column as being predictable.
    dsoColumn.IsPredictable = True