You mean you can't take less？

Posted 2023-05-14

It's very easy to take more than nothing.怎么理解这两句话？

这是爱丽丝梦游仙境的话:

"Take some more tea," the March Hare said to Alice, very earnestly."I've had nothing yet," Alice replied in an offended tone, "so I can't take more."

"You mean you can't take less?" said the Hatter. "It's very easy to take more than nothing."

“再多喝一点茶吧！”三月兔认真地对爱丽丝说。

“我还一点都没喝呢？因此不能说再多喝一点了！”爱丽丝不高兴地回答。

“你应该说不能再少喝点了吧，”帽匠说，“比没有喝再多喝一点是最容易不过的了。”

影片信息

《爱丽丝梦游仙境》（Alice in Wonderland）是迪士尼的一部3D立体电影，其灵感来自于英国童话大师刘易斯·卡罗尔的《爱丽斯漫游仙境》和《爱丽丝镜中奇遇记》。由蒂姆·波顿执导，米娅·华希科沃斯卡、约翰尼·德普、海伦娜·邦汉·卡特和安妮·海瑟薇等联袂出演。影片于2010年3月26日在中国内地上映。

影片讲述了发生在爱丽丝上次梦游仙境的十三年后的故事，已经19岁的爱丽丝去一个庄园参加一个聚会，爱丽丝选择了逃跑，她跟着一只白兔钻进了一个洞，再次来到“仙境”。

参考技术A 为您解答
这是爱丽丝梦游仙境的话:
"Take some more tea," the March Hare said to Alice, very earnestly."I've had nothing yet," Alice replied in an offended tone, "so I can't take more."
"You mean you can't take less?" said the Hatter. "It's very easy to take more than nothing."

“再多喝一点茶吧！”三月兔认真地对爱丽丝说。
“我还一点都没喝呢？因此不能说再多喝一点了！”爱丽丝不高兴地回答。
“你应该说不能再少喝点了吧，”帽匠说，“比没有喝再多喝一点是最容易不过的了。” 参考技术B you mean you can't take less?
意思是你得到的太少了？（不能更少）
it is very easy to take more than nothing.
很容易有所收获（得到多于没有）

mysql中You can't specify target table for update in FROM clause错误

MySQL中You can‘t specify target table <tbl> for update in FROM clause错误的意思是说，不能先select出同一表中的某些值，再update这个表(在同一语句中)。 例如下面这个sql：

delete from tbl where id in 
(
        select max(id) from tbl a where EXISTS
        (
            select 1 from tbl b where a.tac=b.tac group by tac HAVING count(1)>1
        )
        group by tac
)

改写成下面就行了：

delete from tbl where id in 
(
    select a.id from 
    (
        select max(id) id from tbl a where EXISTS
        (
            select 1 from tbl b where a.tac=b.tac group by tac HAVING count(1)>1
        )
        group by tac
    ) a
)

也就是说将select出的结果再通过中间表select一遍，这样就规避了错误。注意，这个问题只出现于mysql，mssql和Oracle不会出现此问题。

转自：http://blog.csdn.net/priestmoon/article/details/8016121