标题: 【咨询】请问以下什么区别 [打印本页] 作者: jonish 时间: 2012-12-14 14:56 标题: 【咨询】请问以下什么区别 left join dwhods.t_o_cbs_cbesubscriberdyn b
on a.subscriberkey = b.subscriberkey
and b.data_day = a.data_day
where a.data_day = ' || v_data_day || '';
和这个
left join dwhods.t_o_cbs_cbesubscriberdyn b
on a.subscriberkey = b.subscriberkey
and b.data_day = a.data_day
where a.data_day = ''' || v_data_day || '''';