大约有 31,100 项符合查询结果（耗时：0.0672秒） [XML]
Mysql ibdata 丢失或损坏如何通过frm&ibd 恢复数据 - 爬虫/数据库 - 清...
mysql存储在磁盘中，各种天灾人祸都会导致数据丢失。大公司的时候我们常常需要做好数据冷热备，对于小公司来说要做好所有数据备份需要支出大量的成本，很多公司也是不现实的。万一还没有做好备份，数据被误删除了，或...
【解决】Linux mysql如何重置root密码？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
【解决】Linux mysql如何重置root密码？linux_reset_root_password1 前言忘记你的MySQL root密码？ 别担心，它发生在我们所有人身上。在本教程中，我们将向您展示如何重置MySQL root密码，以防您忘记密码。 本教程适用于任何现代Linux发行...
BLE通信数据不能超过20字节？ - 创客硬件开发 - 清泛IT社区，为创新赋能！
...将使用调用.WriteBytes
After a lot of hours I found the problem in my app.
How I proceeded:
1- At ESP32 code I put this line: BLEDevice::setMTU(192);
2- At app I put the call Request MTU on the .Connected block asking for the same 192 bytes;
In my case, when I have to send a payload <...
How to make an OpenGL rendering context with transparent background?
... few individuals that have accomplished this task don't share much. During my research I found different ways to achieve what I was looking for. One of the most interesting ones is AeroGL, and it shows snippets of code using a technique that was not mentioned so far, which is rendering the graphics ...
SQL/mysql - Select distinct/UNIQUE but return all columns?
...ause the behavior on the other columns is unspecified. (The first works in MySQL, if that's what you're using.)
You could fetch the distinct fields and stick to picking a single arbitrary row each time.
On some platforms (e.g. PostgreSQL, Oracle, T-SQL) this can be done directly using window funct...
How To Get IPython Notebook To Run Python 3?
...
To set IPython Notebook to run Python 3 instead of 2 on my MAC 10.9, I did the following steps
$ sudo pip3 install ipython[all]
Then
$ ipython3 notebook
share
|
improve th...
Why is require_once so bad to use?
...ill getting redefine errors, you could something like this:
if (!defined('MyIncludeName')) {
require('MyIncludeName');
define('MyIncludeName', 1);
}
I'll personally stick with the *_once statements but on silly million-pass benchmark, you can see a difference between the two:
...
Abusing the algebra of algebraic data types - why does this work?
...for g. Parametricity guarantees the universal properties automatically and my less-than-subtle choice of names should give you the idea. The (&&&) operator is defined in Control.Arrow, by the way.
The dual of the above is the coproduct A+B with injections inl : A → A+B and inr : B → ...
window.onload vs document.onload
... try window.addEventListener('load', function() {...}). I've also updated my answer.
– Aakash
Mar 30 '17 at 0:03
4
...
How to automatically convert strongly typed enum into int?
...
@NicolBolas my bad, you're right, thank you for pointing on that. But that backward compatibility in c++11 encourages to use it without the scope (I've seen tons of that code with and without the scope across the sources). I'm trying to ...