Listar foreign keys oracle

CopySELECT a.table_name, a.column_name, a.constraint_name, c.owner, 
   -- referenced pk
   c.r_owner, c_pk.table_name r_table_name, c_pk.constraint_name r_pk
FROM all_cons_columns a
JOIN all_constraints c ON a.owner = c.owner
                    AND a.constraint_name = c.constraint_name
JOIN all_constraints c_pk ON c.r_owner = c_pk.owner
                       AND c.r_constraint_name = c_pk.constraint_name
WHERE c.constraint_type = 'R'
 AND a.table_name = :TableName