Class diagram for database objects.

Hi,
I am creating a diagram from the tables in the database in Oracle Jdeveloper 10g. This will basically give me a ER diagram. When I drag and drop a table - say EMP - i get a window - "Create from database object" - which gives me a few options. I selected the "Offline database objects" option. The table appears in the class diagram sheet with the table name, it's columns and the constraints.
Now when I remove this object (table EMP) and then again try to drag and drop the same object as above, I get the object on the sheet as EMP1 and not EMP and also the constraints are renamed. It does not allow me to change the name to EMP. It gives a message that -"TABLE names must be unique" and the table name is renamed to EMP1.
I want the name as EMP only. How do i do it?
Thanks,
Vinay

Vinay,
It's because in the first step, you deleted the table from the diagram, but not from the offline database. Now, when you drag a table from the database connection, it will need to create a new offline table. Instead of dragging from the DB connection, drag it from the offline database (it should already be there from the first step). Alternatively, delete the offline table as well as part of your first step (deleting the object from the diagram).
John

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