导读：
with t as (select level as n from dual connect by level <=9)
select sys_connect_by_path(b.n || '*' || a.n || '=' || a.n * b.n, ' ') as 九九乘法表
from t a, t b
where a.n >= b.n and level = a.n
start with b.n=1
connect by a.n=prior a.n and b.n=prior b.n+1;
with t as (select level as n from dual connect by level <=9)
select sys_connect_by_path(b.n || '*' || a.n || '=' || a.n * b.n, ' ') as 九九乘法表
from t a, t b
where a.n >= b.n and level = a.n
start with b.n=1
connect by a.n=prior a.n and b.n=prior b.n+1;
本文转自 牛海彬 51CTO博客，原文链接：http://blog.51cto.com/newhappy/76990，如需转载请自行联系原作者
