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1，电脑里涵数中求差的单词是什么啊

delta 或是 diff (difference) 吧！

电脑里涵数中求差的单词是什么啊

2，数据库求差集不是要用到minus么它这个语录写的是什么意思

的确是差集，因为原文是不大于即<=，而语句中使用的是>再看看别人怎么说的。

数据库求差集不是要用到minus么它这个语录写的是什么意思

3，求差英文怎么翻译 例如求5和2的差 我所知的词有deduct 2

可以，词典上是这样的 表达数学中的“差”的时候： 例句：The difference between 6 and 3 is 3.6和3的差是3。
你好！What is the difference between 5 and 2。是这个意思不？反正句型是给你了，可以再拿别的数往里套...打字不易，采纳哦！

求差英文怎么翻译 例如求5和2的差 我所知的词有deduct 2

4，sql 求差值

select count2014,count2015,(count2015-count2014) as count from tablename
with t1 as (select shuzi,riqi,rownum as rnfrom (select shuzi,riqifrom aorder by 2) t)select p.shuzi-nvl(m.shuzi,0) as new_shuzi,p.riqifrom t1 pleft join t1 m on p.rn-1=m.rn;你看下这个结果

5，sql的求差

select name ,sum(case when t.state=1 then n else -n end)from (select name,state ,sum(amount) as n from goods group by name,state )t group by name
你试下 select count(*) from (select id from biao where dinggongguanxi = 1minusselect id from biao where dinggongguanxi = 2)
SELECT name, SUM ( CASE WHEN state = 1 THEN amout ELSE -1 * amout END ) AS amoutFROM goodsGROUP BY name

文章TAG：数据  数据库  哪个  单词  数据库中哪个单词是求差  
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