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What do Clustered and Non clustered index actually mean?
I have a limited exposure to DB and have only used DB as an application programmer. I want to know about Clustered and Non clustered indexes .
I googled and what I found was :
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Is mongodb running?
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ps -edaf | grep mongo | grep -v grep # "ps" flags may differ on your OS
or
/etc/init.d/mongodb status # for MongoDB version < 2.6
/etc/init.d/mongod status # for MongoDB version >= 2.6
or
service mongod status
to see if mongod is running (you need to be root ...
Markup XML解析库下载（Markup.h 和 Markup.cpp） - 源码下载 - 清泛网 - 专注C/C++及内核技术
...RKUP_WCHAR wide char (2-byte UTF-16 on Windows, 4-byte UTF-32 on Linux and OS X)
// MARKUP_MBCS ANSI/double-byte strings on Windows
// MARKUP_STL (default except VC++) use STL strings instead of MFC strings
// MARKUP_SAFESTR to use string _s functions in VC++ 2005 (_MSC_VER >= 1400)
// MARKUP_WI...
How can I check if a key is pressed during the click event with jQuery?
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Well, as the page says, "Most properties from the original event are copied over and normalized to the new event object." ctrlKey, altKey etc. are part of the ecmascript standard (see the first link on the aforementioned jquery api page), so (at least...
Run ssh and immediately execute command [duplicate]
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Forgot my own syntax, almost gave up on this! For anyone else, just suffix any command with "; bash -l". Perhaps you could change it to '[command]; bash -l' or something for clarities sake? I'll change my question. Thanks!
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iPhone Simulator location
...hone Simulator/
You can browse simulator files from that directory in Mac OS X.
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How to make git diff --ignore-space-change the default
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You could use git alias or bash alias if you are using shell-available OS.
git alias : Run this command to add alias:
git config --global alias.dfw 'diff --ignore-space-change'
--ignore-space-change can be abbreviated to -w
to apply the alias using: git dfw
bash alias : Run this command to a...
Why doesn't JavaScript support multithreading?
...d updating an element accordingly will just let you see the start and end positions, and nothing in between.
We use an abstraction library in JavaScript that allows us to create processes and threads which are all managed by the same JavaScript interpreter. This allows us to run actions in the foll...
Eclipse Android Plugin — libncurses.so.5
...g mightily with installing ADT (Android Dev Tools) on Eclipse in Fedora 16 OS, 64-bit.
7 Answers
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What does PermGen actually stand for?
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Which answer was the accepted one at the time you posted this comment? The currently accepted answer (this one, by "Tom Hawtin - tackline") looks accurate to me. Might make sense to edit your comment so it doesn't lead people to mistrust the current accepted answer?
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