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Is it possible to GROUP BY multiple columns using MySQL?

...red Dec 3 '09 at 17:14 Joe PhillipsJoe Phillips 43k2424 gold badges8989 silver badges147147 bronze badges ...
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Parse (split) a string in C++ using string delimiter (standard C++)

I am parsing a string in C++ using the following: 17 Answers 17 ...
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Are querystring parameters secure in HTTPS (HTTP + SSL)? [duplicate]

Do querystring parameters get encrypted in HTTPS when sent with a request? 4 Answers 4...
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How to get first and last day of previous month (with timestamp) in SQL Server

... First Day Of Current Week. select CONVERT(varchar,dateadd(week,datediff(week,0,getdate()),0),106) Last Day Of Current Week. select CONVERT(varchar,dateadd(week,datediff(week,0,getdate()),6),106) First Day Of Last week. select CONVERT(varchar,DATEADD(week,datediff(...
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Send Email Intent

....")); Update: According to marcwjj, it seems that on 4.3, we need to pass string array instead of a string for email address to make it work. We might need to add one more line: intent.putExtra(Intent.EXTRA_EMAIL, addresses); // String[] addresses Ref link ...
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static const vs #define

... String constants specifically are one of those that might benefit from being #defined, at least if they can be used as "building blocks" for bigger string constants. See my reply for an example. – AnT ...
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Do I need to heartbeat to keep a TCP connection open?

I have two components that that communicate via TCP/IP. Component A acts as a server/listener and Component B is the client. The two should communicate as quickly as possible. There can only ever be one connection at any time (though that is aside to this question). A senior developer at my comp...
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I've found my software as cracked download on Internet, what to do?

...as between 20% and 70%. Even at the low end that's a significant amount of extra revenue. share edited Aug 25 '10 at 16:57 ...
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浅谈TCP优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...可以控制接收窗口的大小: shell> sysctl -a | grep mem net.ipv4.tcp_rmem = <MIN> <DEFAULT> <MAX> 如果我们出于传输性能的考虑,设置了一个足够大的缓冲,那么当大量请求同时到达时,内存会不会爆掉?通常不会,因为Linux本身有一个缓冲...
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Is a Java string really immutable?

We all know that String is immutable in Java, but check the following code: 15 Answers ...