Home > SQL Developer Dialog Boxes ... > Export: Unique Names Warning
If a cart to be exported contains multiple objects with the same name and different owners (schemas), and if the Show Schema option is not enabled, you are warned that some objects in the cart are not unique and that all objects must be uniquely identified by object type and name. (The Show Schema option causes the schema name to included in CREATE statements: for example, CREATE TABLE SMITH.BOOKS instead of CREATE TABLE BOOKS.)
For example, if the cart contains the tables SMITH.BOOKS and JONES.BOOKS, and if the Show Schema option is not enabled, you cannot include both tables in the export operation.
To perform the export operation, either enable the Show Schema option or select only one of the objects with the same name. If you click Yes to continue, the Show Schema option is selected in the Export Objects dialog box and cannot be deselected.