posted 14 years ago
Foreign keys are listed in the "Constraints" tab, identifiable by the value "Foreign Key" in the CONSTRAINT_TYPE column.
In addition, in the "References" tab, it shows a graphical representation of relationships, and if "Links to Columns" is selected and the node content is set to "Columns", the foreign key relationships will be obvious graphically.
(Note that setting "Links to Columns" may cause layout issues in larger graphs, though.)