大约有 11,424 项符合查询结果（耗时：0.0220秒） [XML]
Get top 1 row of each group
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+1 for huge speed improvement. This is much faster than a windowing function such as ROW_NUMBER(). It would be nice if SQL recognized ROW_NUMBER() = 1 like queries and optimized them into Applies. Note: I used OUTER APPLY as I needed results, even if they didn't exist in the apply...
Automatically update version number
...Each of the 4 numbers in the Version string is limited to 65535. This is a Windows Limitation and unlikely to get fixed.
Why are build numbers limited to 65535?
Using with with Subversion requires a small change:
Using MSBuild to generate assembly version info at build time (including SubVersio...
How do I use Maven through a proxy?
...:
export MAVEN_OPTS="-DsocksProxyHost=127.0.0.1 -DsocksProxyPort=$PORT"
Windows:
set MAVEN_OPTS="-DsocksProxyHost=127.0.0.1 -DsocksProxyPort=$PORT"
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Why does InetAddress.isReachable return false, when I can ping the IP address?
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@Yuvi If you're using Windows, the flags differ. Instead of -c you want -n.
– James T Snell
Oct 21 '13 at 22:31
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Why does i = i + i give me 0?
...hole program with anything (even system("deltree C:"), since you're in DOS/Windows). Signed integer overflow is undefined behavior in C/C++, unlike Java. Be very careful when using this kind of construct.
– filcab
Jun 12 '14 at 17:13
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What's the “average” requests per second for a production web application?
... Not sure. At that time I was at IXWebhosting and they were using a Windows 32-bit Operating System for their shared servers. I suspect their mySQL database server was a separate dedicated machine, but I don't know for sure.
– lkessler
May 11 '10 at 18:5...
What does void* mean and how to use it?
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The disadvantage of using void * is that you throw type safety out the window and into oncoming traffic. There's nothing to protect you from using the wrong comparison routine:
qsort(dArr, sizeof dArr/sizeof dArr[0], sizeof dArr[0], compareInt);
compareInt is expecting its arguments to be po...
What are the uses of “using” in C#?
...ng (SqlConnection cnn = new SqlConnection()) { /*code*/}
using f1 = System.Windows.Forms.Form;
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How do you disable the unused variable warnings coming out of gcc in 3rd party code I do not wish to
... to turn off unused variable warnings? I'm getting errors out of boost on windows and I do not want to touch the boost code:
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How to upgrade Git to latest version on macOS?
.... (To change mac default shell unlock the accounts or "users & groups" window in system prefs, control-click account for "advanced options".) A suggestion using bash_profile instead of bashrc, e.g. echo 'export PATH="/usr/local/git/bin:/usr/local/sbin:~/bin:$PATH"' >> ~/.bash_profile is at...