Yes! Crossing the boundary between code + DB allows things like showing "this url could read/write these table columns", down to "hover over data to see the source" levels. This can track what has been accessed in the past year vs. no longer used, etc.

You can also reverse engineer missing foreign key relationships by parsing all of an apps' stored procedures (for relationship diagrams, etc.). Or just what external entities are referenced from "other" databases to get an idea of minimal schemas needed for automated testing.