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Convert Rows to columns using 'Pivot' in SQL Server

..., 212), (105, 2, 78), (109, 2, 97), (105, 3, 60), (102, 3, 123), (101, 3, 220), (109, 3, 87); If your values are known, then you will hard-code the query: select * from ( select store, week, xCount from yt ) src pivot ( sum(xcount) for week in ([1], [2], [3]) ) pi...
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App Inventor 2开发简单计算器 - App Inventor 2 中文网 - 清泛IT论坛,有思想、有深度

...建点击数字过程按照计算器的使用习惯,如果要输入数字123,会依次点击三个数字键,但三个数字的排列要用程序来处理,这里存在两种情况:当后数=0时,即,当用户输入第一个数字时,让后数直接等于输入的数字;当用户接...
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Unresolved external symbol on static class members

...le looks like: //myClass.cpp void myClass::myFunc() { myClass::m_nMyVar = 123; //I tried to use this m_nMyVar here and got link error } So I add below code on the top of myClass.cpp //myClass.cpp int myClass::m_nMyVar; //it seems redefine m_nMyVar, but it works well void myClass::myFunc() { myCl...
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How to inherit constructors?

... 123 Yes, you will have to implement the constructors that make sense for each derivation and then ...
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Error installing mysql2: Failed to build gem native extension

...t be 127.0.0.1, and if the password is number, it must be put in quote ex '123456' otherwise we can type normally ex admin123 – duykhoa Oct 30 '12 at 7:46 ...
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How to extract base URL from a string in JavaScript?

... URL("https://www.example.com:3000/article/2009/09/14/this-is-an-article/#m123") const parts = ['protocol', 'hostname', 'pathname', 'port', 'hash']; parts.forEach(key => console.log(key, myUrl[key])) share ...
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Clicking URLs opens default browser

...y iframe within the page with a custom scheme URL (say <iframe src="tel:123"/>) it will navigate your app's main frame to that URL most likely breaking the app as a side effect. – marcin.kosiba Feb 7 '14 at 12:35 ...
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Fastest way to check if a string is JSON in PHP?

... $phone = '021234567'; var_dump(isJson($phone)); return true no! it should return false. – vee Jan 2 '14 at 17:12 ...
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Passing a single item as IEnumerable

... 123 In C# 3.0 you can utilize the System.Linq.Enumerable class: // using System.Linq Enumerable....
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How can I see the size of a GitHub repository before cloning it?

... 123 If you own the repository, you can find the exact size by opening your Account Settings → Re...