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Remove Columns from a Mining Structure

You can use Data Mining Designer to remove columns from a mining structure after the structure has already been created. Reasons to remove a mining structure column might include the following:

  • The mining structure contains multiple copies of a column and you want to avoid the use of duplicate data in a model.

  • The data should be protected, but drillthrough has been enabled.

  • The data is unused in modeling and should not be processed.

Deleting a column from the mining structure does not change the column in the data source view or in the external data; only metadata is deleted. However, when you change the columns used in a mining structure, you must reprocess the structure and any models based on it.

To remove a column from the mining structure

  1. Select the Mining Structure tab in Data Mining Designer.

  2. Expand the tree for the mining structure, to show all the columns.

  3. Right-click the column that you want to delete, and then select Delete.

  4. In the Delete Objects dialog box, click OK.

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