You can edit queries added to a catalog at any time. To edit a query, in the Data tab of the Catalog Browser, right-click the query and select Edit Query from the shortcut menu, then in the Query Editor window, edit the query as required. For example, you can add some extra tables to the query and define join relationship among these tables.
See also Query Editor window for additional help about options in the window.
This section details how to edit an existing query as follows: