3.9、向前提取剩下的所有数据

postgres=# FETCH FORWARD 2 from tbase_cur ;    
 id |  nickname   
----+-------------
  1 | hello TBase
  2 | TBase好
(2 rows)
postgres=# FETCH FORWARD all from tbase_cur ;                                         
 id |   nickname    
----+---------------
  3 | TBase好
  4 | TBase default
  5 | TBase swap
(3 rows)