You can remove data that you have added from an external source.
If you remove data, it is removed from the project or analysis. Removing data differs from deleting data, as described in Deleting Data that You Added.
To remove data that you added:
In the Data Sources pane in Visual Analyzer or the Subject Areas pane of Oracle Business Intelligence, right-click the data that you want to remove.
Select Remove from Project or Remove from Analysis to remove data from the data sources list.