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With 子句从 oracle 9i 开始支持
--不用connect by，只用dual表，构造出1到128with a as (select 1 from dual union all select 1 from dual)select rownum from a, a, a, a, a, a, a;--做一个5*5的乘法表with multiplier as (select rownum n from dual connect by rownum<6)select a.n||‘*‘||b.n||‘=‘||(a.n*b.n) from multiplier a, multiplier b;
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原文地址：http://www.cnblogs.com/mahun/p/4126138.html
