FK across schemas in Data Modeling

Question

Hello,
how can I create a foreign key across schemas in SQL Developer Data Modeling? Must both tables be on the same relational model? Otherwise I cannot create the relation because both tables must be displayed on the same diagram in order to draw a FK relation between them. Or is there another way? If not, then this is very inconvenient as I must include all the tables from different schemas in one relational model.
TIA,
Peter

Answer 1

Peter,
Yes you need all the tables in one and the same relational diagram.
However you can use the SUBVIEW facility.
When you import one or more schemas from a catalog one global relational model will be created and one subview per subschema. You can create the foreign key on the main relational diagram or you can drag and drop the table you want the foreign key with on the subview and create the relation there. A subview and a main view are always kept in sync.
When you have created your own main relational diagram you can create one or more subviews yourself. To populate a subview you can drag and drop tables to it or you can use the "select neighbors" facility (click right on table) and then use "create subview from selected". You can also do a multiple select on the diagram (hold shift key) and create a subview from selected.
Kind regards,
René De Vleeschauwer
SQL Developer Data Modeling team