oracle查詢沒有主鍵的表

 

 

select table_name
  from user_tables a
 where not exists (select *
          from user_constraints b
         where b.constraint_type = 'P'
           and a.table_name = b.table_name)

 

轉載:http://blog.itpub.net/20893244/viewspace-2132149/