[Table Foo]
Id: GUID
... Fields

[Table Bar]
Id: GUID
FooId: GUID (references Foo.Id)
... Fields

[Table Baz]
Id: GUID
BarId: GUID (References Bar.Id)
... Fields

SELECT *
FROM foo, bar, baz
WHERE foo.Id = bar.FooId && bar.Id = baz.BarId