Display the foreign keys and primary keys in hirarchy qeury  please ?

Any sql query to get the following columns:
I should display all the master table names,it's primary key field and its foregin key field,the name of the foreignkey'table.
This should be displayed in hirarchy i.e. it should start from the top level table like upside down tree.
can we query the database like this
thanx in advance
prasanth a.s.

hi there,
Please can any body help in this query!
Thanxs in advance
prasanth a.s.

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