标签：style http ar sp on 数据 div 2014 bs
oracle 中有个很重要的同义词 dual。
select sysdate from dual;select user from dual;select 1+3 from dual;select 7*5 from dual;select power(2,10) from dual;select to_char(sysdate,‘yyyy-mm-dd‘) from dual;create sequence tom2014;select tom2014.nextval from dual;select tom2014.currval from dual;drop sequence tom2014;
标签：style http ar sp on 数据 div 2014 bs
原文地址：http://www.cnblogs.com/mahun/p/4125778.html
