2013年11月25日
sql取大的一个值
摘要： select b.*, a.recid, a.keyno from product b, (select pcode, keyno, max(reccid) recid from productstr group by pcode, keyno) a where b.pcode = a.pcode( 阅读全文
posted @ 2013-11-25 10:41 浅草风铃 阅读(690) 评论(0) 推荐(0)
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