oracle查询某张表被其它表作为外键

select c.table_name,
       c.constraint_name,
       fc.table_name,
       fc.constraint_name,
       cc.column_name,
       fcc.column_name
  from user_cons_columns fcc,
       user_cons_columns cc,
       user_constraints  c,
       user_constraints  fc
 where fc.constraint_name = c.r_constraint_name
   and fc.constraint_name = fcc.constraint_name
   and c.constraint_name = cc.constraint_name
   and c.constraint_type = 'R'
   and  fc.table_name in ('T_PRODUCT')