我想知道有没有办法选择 100 到 500 之间随机生成的数字以及选择查询.
I would like to know is there a way to select randomly generated number between 100 and 500 along with a select query.
例如:SELECT name, address, random_number FROM users
我不必将此数字存储在 db 中,仅用于显示目的.
I dont have to store this number in db and only to use it to display purpose.
我尝试过类似这样的方法,但无法正常工作..
I tried it something like this, but it can't get to work..
SELECT name, address, FLOOR(RAND() * 500) AS random_number FROM users
希望有人帮助我.谢谢
这应该给你想要的:
FLOOR(RAND() * 401) + 100
通常,FLOOR(RAND() * (
生成
包括在内.
Generically, FLOOR(RAND() * (<max> - <min> + 1)) + <min>
generates a number between <min
> and <max>
inclusive.
更新
这个完整的声明应该有效:
This full statement should work:
SELECT name, address, FLOOR(RAND() * 401) + 100 AS `random_number`
FROM users
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