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How do I rename a column in a database table using SQL?
...e issue - if it is addressed in the SQL standard. My copy of the SQL 9075:2003 standard does not show it as being standard (amongst other things, RENAME is not one of the keywords). I don't know whether it is actually in SQL 9075:2008.
...
Linux C/C++程序常用的调试手段及异常排查总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...经常使用的ide上安装相关格式化插件）
是否涉及动态资源
是否有申请动态内存，文件描述符等，执行完是否有正确释放？指针等操作是否规范？
性能如何
是否有一些执行耗时的操作，I/O，网络文件下载，文件解析等...
Uber5岁了，一次性告诉你它的商业之道 - 资讯 - 清泛网 - 专注C/C++及内核技术
...及移动支付技术的发展，使得利用智能手机平台有效调配资源、并完成交易成为可能。卡兰尼克选择车辆作为他的“共享”事业。这满足了共享经济的多个前提：共享的物品明确，使用频次足够大，共享方式简单易操作。
大量...
Alternative for PHP_excel
...nabled)
PHP-Export-Data by Eli Dickinson (Writes SpreadsheetML - the Excel 2003 XML format, and CSV)
Oliver Schwarz's php-excel (SpreadsheetML)
Oliver Schwarz's original version of php-excel (SpreadsheetML)
excel_xml (SpreadsheetML, despite its name)... link reported as broken
The tiny-but-strong (t...
How to run a makefile in Windows?
...tey package manager for WINDOWS (compatible to Windows 7+ / Windows Server 2003+) here
Step 2: run choco install make
Step 3: Profit from a well-maintained package manager. Make will have been added to the global path and runs on all CLIs (powershell, git bash, cmd …)
I am not affiliated with c...
Implode an array with JavaScript?
...s. But not with ";". It join but replaces ";" with ",", at least on Server 2003.
– jaysponsored
May 20 '13 at 15:36
add a comment
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Truncate a string straight JavaScript
...'\u0009\u000A\u000B\u000C\u000D\u0020\u00A0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u2028\u2029\u3000\uFEFF';
var reg = new RegExp('(?=[' + trimmable + '])');
var words = str.split(reg);
var count = 0;
return words.fil...
Memcached下一站：HandlerSocket！ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...够好，所以就没有必要使用Memcached了，能节省大量的硬件资源，相当低碳！而且HandlerSocket操作的是MySQL放在内存中的索引，没有额外的缓存，所以自然就不存在数据一致性的问题。
安装
如果使用Percona Server版本的MySQL就简单了...
“[notice] child pid XXXX exit signal Segmentation fault (11)” in apache error.log [closed]
...d libraries ....................... done
0x9568ce29 in accept$NOCANCEL$UNIX2003 ()
(gdb) c
Continuing.
Wait for crash... then:
(gdb) backtrace
Or
(gdb) backtrace full
Should give you some clue what's going on. If you file a bug report you should include the backtrace.
If the crash is hard t...
How to develop and test an app that sends emails (without filling someone's mailbox with test data)?
...ks ago and wrote this: http://smtp4dev.codeplex.com
Windows 7/Vista/XP/2003/2010 compatible dummy SMTP server. Sits in the system tray and does not deliver the received messages. The received messages can be quickly viewed, saved and the source/structure inspected. Useful for testing/debugging s...