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How do I perform the SQL Join equivalent in MongoDB?
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As of Mongo 3.2 the answers to this question are mostly no longer correct. The new $lookup opera...
What is the point of noreturn?
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edited May 10 '12 at 16:42
answered May 10 '12 at 16:27
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How to query SOLR for empty fields?
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answered Nov 21 '10 at 17:49
netcodernetcoder
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Tree data structure in C#
...sn't one provided. An Extensive Examination of Data Structures Using C# 2.0 explains a bit about why. Is there a convenient library which is commonly used to provide this functionality? Perhaps through a strategy pattern to solve the issues presented in the article.
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Install Node.js on Ubuntu
I'm trying install Node.js on Ubuntu 12.10, but the terminal shows me an error about lost packages. I tried with this:
18 A...
What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
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You should use 400 for business rules. Don't return 2xx if the order was not accepted. HTTP is an application protocol, never forget that. If you return 2xx the client can assume the order was accepted, regardless of any information you send...
Why use JUnit for testing?
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140
That's not testing, that's "looking manually at output" (known in the biz as LMAO). More formall...
绘画动画组件 · App Inventor 2 中文网
...互，并根据其属性值移动。
例如，让一个球形精灵每 500 毫秒（半秒）向画布的顶部移动 4 个像素，您可以将 速度 属性设置为 4 [像素]，
间隔 属性为 500 [毫秒]，方向 属性为90 [度]，启用 属性为真。
这些及其他属性可以随时...
SQL Server: SELECT only the rows with MAX(DATE)
...ikael ErikssonMikael Eriksson
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How to check if a variable is null or empty string or all whitespace in JavaScript?
...ch those, too.
– grant
Aug 9 '13 at 0:26
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@Grant I purposefully did NOT do that because op said ...