大约有 7,000 项符合查询结果（耗时：0.0238秒） [XML]
What is PostgreSQL explain telling me exactly?
MySQL's explain output is pretty straightforward. PostgreSQL's is a little more complicated. I haven't been able to find a good resource that explains it either.
...
Emacs Ruby autocomplete almost working
...
Here's a thought: The macro binds a flet function (rails-project:root) one time to the value that (rails-project:root) has just before the body executes. (That's how it claims a performance increase: Apparently the outer (rails-project:root) is expensive, so calling once and caching the va...
Lost httpd.conf file located apache [closed]
..._CONFIG_FILE="apache2.conf" You can run "/usr/sbin/apache2 -V | grep HTTPD_ROOT" to find the root. Output: "-D HTTPD_ROOT="/etc/apache2/apache2.conf" The absolute path will be then : "/etc/apache2/apache2.conf"
– Mayank Jaiswal
Oct 27 '13 at 14:56
...
Linux查看哪些进程被OOM killer干掉 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...-linux-oom-killergrep -i & 39;killed process& 39; var log messages 需要root权限dmesg -T | egrep -i & 39;killed process& 39; 无需知道日志位置，无需root权
grep -i 'killed process' /var/log/messages #需要root权限
dmesg -T | egrep -i 'killed process' #无需...
NPM cannot install dependencies - Attempt to unlock something which hasn't been locked
...t the problem was. My ".npm" folder in my home directory was owned by the root user instead of myself. I'm not sure what happened to cause that. Maybe I installed node or npm as the root admin at one point. In any case I just ran sudo chown -R [username] .npm and I was finally able to run npm in...
Stacking Divs from Bottom to Top
...s.
I created a codepen for it.
https://codepen.io/king-dev/pen/PoPgXEg
.root {
transform: scaleY(-1);
}
.root > div {
transform: scaleY(-1);
}
The idea is to flip the root first horizontally and then flip direct children divs again.
NOTE: the above method also reverses the order of divs...
Why “no projects found to import”?
I am trying to "import existing project into workspace". As the "root directory" I select the directory where all my .java (and .class) files are located. Eclipse writes me that "no projects are found to import". Why?
...
谁在争抢UGC - 资讯 - 清泛网 - 专注C/C++及内核技术
...站进行竞争的仍然是与民生密切相关的新闻领域。因此，如何将UGC的范围扩大，让网友生产出真正具有新闻价值的信息，在提供娱乐的同时承担起媒体的社会责任，应该是“UGC新贵”们应该进行的长远打算。
如今，用户越来越...
Best practice to run Linux service as a different user
Services default to starting as root at boot time on my RHEL box. If I recall correctly, the same is true for other Linux distros which use the init scripts in /etc/init.d .
...
马无夜草不肥——聊聊程序员接私活的那些坑 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...易找到一家价钱相对合理的甲方，然后问题又来了，价钱如何阶段收取呢？是5-3-2，还是6-3-1，还是神马？
有些猿类血泪教训：价钱按照3-3-4来收取，做到一半的时候，结果需求方就说不想做了，项目黄了。这种情况下尾款肯定...