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mysql blob大小配置介绍 - 爬虫/数据库 - 清泛IT社区，为创新赋能！
...种处理大数据对象的方法是把双刃剑，它有可能引发一些问题，如存储的二进制文件过大，会使数据库的性能下降。在数据库中存放体积较大的多媒体对象就是应用程序处理BLOB的典型例子。
mysql BLOB类型
MySQL中，BLOB是个类...
Force LF eol in git repo and working copy
...s actually a VirtualBox sharing the Windows directory; and while Notepad++ etc. can handle LF-only on Windows, vi is less happy with CRLF. Do I just want to change it so that core.autocrlf is false (or input)?
– Chowlett
Apr 3 '12 at 7:52
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Deny access to one specific folder in .htaccess
...l won't give 404 but 403. You can still access file/folders using PHP/Perl etc but not using a web request. You can open a new question if that didn't answer your query.
– anubhava
Dec 11 '15 at 22:11
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What is JSONP, and why was it created?
...e codes back. As a result, you end up using timers to monitor the request, etc, which is always a bit suspect. The proposition for JSONRequest is a great solution to allowing cross domain scripting, maintaining security, and allowing proper control of the request.
These days (2015), CORS is the rec...
What's the best way of scraping data from a website? [closed]
...settle for "not too bad". I agree, it's doable in PHP (and FORTRAN, C, VB, etc.) but unless your problem is really really simple then it would be a much better idea to use the right tools for the job. And again, unless you have an incredibly simple problem to solve ... what does it matter that reg...
Why is Magento so slow? [closed]
...ehind the scenes (application configuration, system config, layout config, etc.) that involve building up giant XML trees in memory and then "querying" those same trees for information. This takes both memory (storing the trees) and CPU (parsing the trees). Some of these (especially the layout tre...
Downloading a large file using curl
...URNTRANSFER has to be true in case you are getting file like pdf/csv/image etc.
You may find the further detail over here(correct url) Curl Doc
From that page:
curl_setopt($request, CURLOPT_TIMEOUT, 300); //set timeout to 5 mins
curl_setopt($request, CURLOPT_RETURNTRANSFER, true); // true to get...
ERROR 2006 (HY000): MySQL server has gone away
...ted at: "C:\ProgramData\MySQL\MySQL Server
5.6"
On Linux (Ubuntu): /etc/mysql
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MFC RadioButton用法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...m_RBtGroup3);
DDX_Control(pDX, IDC_RADIO9, m_RBtGroup4);
}
问题一：如何更改RadioButton默认值？？？
方法1
在定义控件变量时，默认变量初值为-1，表示此组的任何RadioButton均不被选中，如果需要改变初始默认按钮的设置情况，...
Which MySQL data type to use for storing boolean values
...eah, I'd go for either this or, for a CHAR(1) and store 'Y'/'N' or 'T'/'F' etc. depending upon the context. The advantage of using a small integer type is that you get maximum portability across RDBMS-es
– Roland Bouman
May 15 '10 at 22:42
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