http://blog.csdn.net/jaminwm/article/details/5666014
方法1:
SQL> create table b as select 1 id from dual connect by level<=100;
方法2:
SQL> create table a (id int);
Table created.
SQL> insert into a select 1 from dual connect by level<=100;
100 rows created.
方法一经常用到,特记录!