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How to select rows that have current day's timestamp?
... the `` are important because timestamp (and date as in my case) is a MySQL reserved word
– Victor Ferreira
Jan 10 '15 at 19:39
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How to initialize log4j properly?
...operties file format taken from the log4j intro documentation page:
log4j.rootLogger=debug, stdout, R
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
# Pattern to output the caller's file name and line number.
log4j.appender.stdou...
Sort points in clockwise order?
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+1: No atan(), no square root, and even no divisions. This is a good example of computer graphics thinking. Cull off all the easy cases as soon as possible, and even in the hard cases, compute as little as possible to know the required answer.
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Facebook database design?
... has 100 friends, that means the table would contain 100'000'000'000 rows. MySQL partitioning?
– veidelis
Jun 4 '14 at 7:30
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服务器保持大量TIME_WAIT和CLOSE_WAIT的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...eb服务器也是会出现大量的TIME_WAIT的情况的。
现在来说如何来解决这个问题，解决思路很简单，就是让服务器能够快速回收和重用那些TIME_WAIT的资源。
下面来看一下我们网管对/etc/sysctl.conf文件的修改：
#对于一个新建连...
Why unsigned integer is not available in PostgreSQL?
... is the difference between tinyint, smallint, mediumint, bigint and int in MySQL? ) and realized that PostgreSQL does not support unsigned integer.
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How to change package name of an Android Application
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It does the same to me right now if I right-click on the root directory. At least for me, that's not my actual package name. If your package name is com.a.bc, there should be a directory below the root directory called bc. That's where you'll get the different options. Right now, I...
Android Debug Bridge (adb) device - no permissions [duplicate]
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Giving adb root access by default bothers me, especially since all devices do not need adb to as root. To make things easier you can create a bash script and run that with sudo
– Leon
May 10 '13 at...
How to change root logging level programmatically for logback
...h.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
Logger root = (Logger)LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
root.setLevel(Level.INFO);
Note that you can also tell logback to periodically scan your config file like this:
<configuration scan="true" scanPeriod="30 ...
Naming cookies - best practices [closed]
... This is especially problematic if your cookies are scoped to your website root "/", and not to the folder where they are consumed.
So I say, two best practices:
make sure you limit scope of your cookies to the path where they are read and written, (third argument of setcookie() method does thi...