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SQL JOIN vs IN performance?
I have a case where using a JOIN or an IN will give me the correct results... Which typically has better performance and why? How much does it depend on what database server you are running? (FYI I am using MSSQL)
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C99 stdint.h header and MS Visual Studio
To my amazement I just discovered that the C99 stdint.h is missing from MS Visual Studio 2003 upwards. I'm sure they have their reasons, but does anyone know where I can download a copy? Without this header I have no definitions for useful types such as uint32_t, etc.
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Delaying a jquery script until everything else has loaded
I have a jquery script which I need to run only once everything else on the page, including some other javascripts (over which I have no control) have finished doing their thing.
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Difference between “\n” and Environment.NewLine
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Depends on the platform. On Windows it is actually "\r\n".
From MSDN:
A string containing "\r\n" for
non-Unix platforms, or a string
containing "\n" for Unix platforms.
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Run a PHP file in a cron job using CPanel
I am just trying to run a PHP script using a cron job within CPanel - is this the correct syntax:
12 Answers
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What's the difference between tilde(~) and caret(^) in package.json?
...pgraded to latest stable node and npm , I tried npm install moment --save . It saves the entry in the package.json with the caret ^ prefix. Previously, it was a tilde ~ prefix.
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How do I prevent Android taking a screenshot when my app goes to the background?
The app I'm currently building has the requirement that the app has to prevent the OS to take a screenshot of the app when it's being pushed into the background for security reasons. This way it won't be able to see the last active screen when switching between apps.
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How to elegantly rename all keys in a hash in Ruby? [duplicate]
I have a Ruby hash:
11 Answers
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Linux bcc tools使用总结（持续更新） - 操作系统(内核) - 清泛网 - 专注IT技能提升
...PPID RET ARGS
0.996 head 12101 6578 0 /usr/bin/head -v -n 8 /proc/meminfo
0.996 head 12102 6578 0 /usr/bin/head -v -n 2 /proc/stat /proc/version /proc/uptime /proc/loadavg /proc/sys/fs/file-nr /proc/sys/kernel/hostname
0.998 tail 12103 6578 ...
Linux bcc tools使用总结（持续更新） - 操作系统(内核) - 清泛网 - 专注IT技能提升
...PPID RET ARGS
0.996 head 12101 6578 0 /usr/bin/head -v -n 8 /proc/meminfo
0.996 head 12102 6578 0 /usr/bin/head -v -n 2 /proc/stat /proc/version /proc/uptime /proc/loadavg /proc/sys/fs/file-nr /proc/sys/kernel/hostname
0.998 tail 12103 6578 ...