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SQL select join: is it possible to prefix all columns as 'prefix.*'?
...iginal" names.
Maybe not the best solution but it works for me....i'm use mysql
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Can I Replace Apache with Node.js?
I have a website running on CentOS using the usual suspects (Apache, MySQL, and PHP). Since the time this website was originally launched, it has evolved quite a bit and now I'd like to do fancier things with it—namely real-time notifications. From what I've read, Apache handles this poorly. I'm w...
Add context path to Spring Boot application
I am trying to set a Spring Boot applications context root programmatically. The reason for the context root is we want the app to be accessed from localhost:port/{app_name} and have all the controller paths append to it.
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What is a stack trace, and how can I use it to debug my application errors?
... multiple "Caused by" sections. For these, you typically want to find the "root cause", which will be one of the lowest "Caused by" sections in the stack trace. In our case, it's:
Caused by: java.lang.NullPointerException <-- root cause
at com.example.myproject.Book.getId(Book.java:22) &...
How do I profile memory usage in Python?
... 12 7 176 100 int
>>> x=[]
>>> h.iso(x).sp
0: h.Root.i0_modules['__main__'].__dict__['x']
>>>
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What is the difference between Class.getResource() and ClassLoader.getResource()?
...ive to the .class file while the latter searches relative to the classpath root.
To debug issues like that, I print the URL:
System.out.println( getClass().getResource(getClass().getSimpleName() + ".class") );
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Java regex email
...mple.com
_somename@example.com
matteo(this is a comment).corti@example.com
root@[127.0.0.1]
Just to mention a few problems:
you don't consider the many forms of specifying a host (e.g, by the IP address)
you miss valid characters
you miss non ASCII domain names
Before even beginning check the ...
Python initializing a list of lists [duplicate]
... Spent hours debugging a script for which this behaviour was the root cause - thanks very much for the excellent answer.
– otocan
May 23 '17 at 9:20
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Linux下追踪程序退出(崩溃)思路 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...值。
注意：history只针对登录用户下执行有效，即使root用户也无法得到其它用户histotry历史。当然，还是有办法记录所有登陆用户的操作历史的：
在/etc/profile里面加入以下代码：
PS1="`whoami`@`hostname`:"'[$PWD]'
history
USER_IP=`wh...
server { # 我们都知道（我们都应该知道），443是 https 的默认端口 list...
... }
root /var/www/html;
index index.html index.htm index.nginx-debian.html;
# server_name _;
location / {
&...