摘要: create table tab(a numeric,b varchar2(50));declare temp varchar2(20):=To_char(sysdate, 'HH24MISS');i number;begin for i in 30..40 loop insert into tab(a,b) values(i,temp||i); end loop;end;select To_ch... 阅读全文
posted @ 2010-11-15 16:43 window5549-accp 阅读(185) 评论(1) 推荐(0) 编辑