Element table
Element tables are referenced by the hierarchy 
    ElementsTableName
      property.In Element tables, these columns have special meaning:
| Column name | Expected Data Type | Required | Explanation | 
|---|---|---|---|
| ID | nvarchar | Yes | Contains element name. | 
| ElementType | nvarchar | No | Contains element type. Optionally, use ElementType to specify elements of these
                types:
 If this column is not present or is empty, the type defaults to N.  | 
          
| OrderPosition | int | No | Defines the order in which the elements are created in the hierarchy. | 
| DataSourceID | int | No | Value of this column will be set to 0 in case the row is affected by a manual editing operation. | 
| <columns referenced by dimensionAttribute ElementTableColumnName property> | No | Value of this column is used to fill in dimension attribute value. |