日期:2014-05-16  浏览次数:20429 次

Oracle数据库笔记

1.with语句

with
    Q1 as (select 2 as S from dual),
    Q2 as (select 4 as M from dual),
    Q3 as (select S, M, S*M, S/M from Q1, Q2)
select * from Q3

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