Properties, clsColumn

注意：
下一版本的 Microsoft SQL Server 将删除该功能。请不要在新的开发工作中使用该功能，并尽快修改当前还在使用该功能的应用程序。

An object of ClassType clsColumn supports the following properties.

Property	Description	Access
AreKeysUnique	Indicates whether key columns defined in the Columns collection uniquely identify members in the case table.	R/W
ClassType	Returns an enumeration constant that identifies the specific object type.	R
ContentType	Describes the content type of a column's data.	R/W*
DataType	The data type of the column.	R/W*
Description	The description of the column.	R/W
Distribution	Identifies the statistical distribution of a column's data.	R/W
Filter	Filters the rows used in the nested table.	R/W*
FromClause	Specifies the FROM clause of the SQL query that returns a nested table for a column.	R/W*
IsDisabled	Specifies whether a column is disabled for training purposes.	R/W
IsInput	Indicates whether a column can accept input values for training a mining model object. For more information, see IsPredictable.	R/W
IsKey	Indicates whether or not the column is a key column in a case table or a nested table.	R/W*
IsParentKey	Indicates whether the column is a foreign key that relates to the case table.	R or R/W*
IsPredictable	Indicates whether this column can be predicted based on other input columns. For more information, see IsInput.	R/W
JoinClause	Specifies the JOIN clause of the SQL query that returns a nested table for a column.	R/W*
ModelingFlags	Specifies modeling options for a column.	R/W
Name	The name of the column.	R/W
Num	The ordinal position of the column.	R/W
Parent	The parent mining model or column object.	R
RelatedColumn	The column to which a column is related.	R/W*
SourceColumn	The name of the column's source column in a relational table.	R/W*
SourceOlapObject	The name of a column's source Decision Support Objects (DSO) object.	R/W
SpecialFlag	Identifies the statistical nature of a column's data.	R/W
SubClassType	Returns an enumeration constant that identifies the subclass type.	R

* This property applies only to columns of SubClassType sbclsRegular. This property applies only to columns belonging to ClassType clsMiningModel objects of SubClassType sbclsRegular. This property applies only to columns belonging to ClassType clsMiningModel objects of SubClassType sbclsOlap.