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mysql_config not found when installing mysqldb python interface
...und".
Which linux distribution are you using? Mysql is pre-packaged for most linux distributions. For example, for debian / ubuntu, installing mysql is as easy as
sudo apt-get install mysql-server
mysql-config is in a different package, which can be installed from (again, assuming debian / ubu...
我帮儿子用App Inventor 2给遥控车装了"蓝牙大脑"，手机一划车就...
...车，车上的单片机要能接收并解析
2. 实时响应：方向盘操作不能有可见延迟
3. 连接稳定：不能玩着玩着就断连
4. 低成本：已有的遥控车不想大拆大改
蓝牙经典串口（SPP）方案最合适——硬件端用HC-05蓝牙模块（十几块钱）...
What is 'YTowOnt9'?
... -d to mean decode, so in your case, probably yes. The answer's author is most likely on OS X, which uses -D for decode. Portability is hard. :-)
– Thanatos
Apr 23 '14 at 16:38
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Apply .gitignore on an existing repository already tracking large number of files
I have an existing Visual Studio project in my repository. I recently added a .gitignore file under my project and I assume that tells Git to ignore the files listed in the file.
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NullPointerException in Java with no StackTrace
...
You are probably using the HotSpot JVM (originally by Sun Microsystems, later bought by Oracle, part of the OpenJDK), which performs a lot of optimization. To get the stack traces back, you need to pass the option -XX:-OmitStackTraceInFastThrow to the JVM.
The optimization is that when...
Should URL be case sensitive?
...you are submitting. It is up to the server how to handle the request URL. Most of web servers are unix/linux and that means most of web servers are case sensitive.
– oᴉɹǝɥɔ
Apr 30 '13 at 16:37
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CSS table-cell equal width
...t. See edit about Safari 6 below */
}
EDIT (2013): Beware of Safari 6 on OS X, it has table-layout: fixed; wrong (or maybe just different, very different from other browsers. I didn't proof-read CSS2.1 REC table layout ;) ). Be prepared to different results.
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Reducing MongoDB database file size
...dTiger it looks like the extra disk space will actually be released to the OS.
UPDATE: as of v1.9+ there is a compact command.
This command will perform a compaction "in-line". It will still need some extra space, but not as much.
MongoDB compresses the files by:
copying the files to a new ...
SQL - Query to get server's IP address
... the address you would give to someone if they can't use the server's NetBios name or FQDN for some reason.
I advice strongly against using this answer. Enabling the shell out is a very bad idea on a production SQL Server.
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Garbage collector in Android
... then improves things, performance-wise. This is because it is not really possible to implement a "perfect" GC which will manage memory optimally in all cases. Such situations are hard to predict and depend on many subtle implementation details. The "good practice" is to let the GC run by itself; a ...