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Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)
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edited Jul 28 at 23:58
Nuno André
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What is the use of having destructor as private?
...aul Tomblin
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Who is listening on a given TCP port on Mac OS X?
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Zennichimaro
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answered Dec 12 '10 at 12:39
ptspts
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How can I horizontally align my divs?
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To achieve what you are trying to do:
Consider using display: inline-block instead of float.
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How to save all the variables in the current python session?
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If you use shelve, you do not have to remember the order in which the objects are pickled, since...
How do I get currency exchange rates via an API such as Google Finance? [closed]
...anks for all your answers.
Free currencyconverterapi:
Rates updated every 30 min
API key is now required for the free server.
A sample conversion URL is: http://free.currencyconverterapi.com/api/v5/convert?q=EUR_USD&compact=y
For posterity here they are along with other possible answers:
Yah...
Create array of regex matches
...n(match.group() + " at " + match.start());
}
yields
a at 0
b at 1
a at 3
c at 4
a at 5
a at 7
b at 8
a at 10
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MVC Razor view nested foreach's model
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304
The quick answer is to use a for() loop in place of your foreach() loops. Something like:
@fo...
Do checkbox inputs only post data if they're checked?
..."on", this should be consistent across browsers.
This is covered in the W3C HTML 4 recommendation:
Checkboxes (and radio buttons) are on/off switches that may be toggled
by the user. A switch is "on" when the control element's checked
attribute is set. When a form is submitted, only "on" c...
Linux bpftrace学习笔记（持续更新） - 操作系统(内核) - 清泛网 - 专注IT技能提升
...bpftrace-install。1、查看程序在打开哪些文件： bpftrace -e & 39;tracepoint:syscalls:sys_enter_open { printf("%s %s n
图：BPF性能工具及其可见性
bpftrace安装请参考：bpftrace-install 。
1、查看哪些程序（如head,tail）正在打开什么文件：
# bpf...