Deleting Elements from a Data Dictionary
To delete a table, column, index segment, typedef, rule, or view from the data dictionary, do the following:
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Click the element to be deleted.
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Do one of the following to delete the element:
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On the Edit menu, select Delete.
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Right-click to display the context-sensitive menu, and select Delete.
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On the toolbar, click the Delete button:
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The highlighted element is deleted from the list. To retrieve the deleted element, select the Undo/Redo command, as explained in the following paragraph. If the file is saved after an element is deleted, the Undo/Redo command is disabled.