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MySQL INNER JOIN select only one row from second table

I have a users table and a payments table, for each user, those of which have payments, may have multiple associated payments in the payments table. I would like to select all users who have payments, but only select their latest payment. I'm trying this SQL but i've never tried nested SQL sta...
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How to render a DateTime in a specific format in ASP.NET MVC 3?

If I have in my model class a property of type DateTime how can I render it in a specific format - for example in the format which ToLongDateString() returns? ...
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ASP.NET Web API OperationCanceledException when browser cancels the request

When a user loads a page, it makes one or more ajax requests, which hit ASP.NET Web API 2 controllers. If the user navigates to another page, before these ajax requests complete, the requests are canceled by the browser. Our ELMAH HttpModule then logs two errors for each canceled request: ...
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How to add “active” class to Html.ActionLink in ASP.NET MVC

I'm trying to add an"active" class to my bootstrap navbar in MVC, but the following doesn't show the active class when written like this: ...
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Why hasn't functional programming taken over yet?

I've read some texts about declarative/functional programming (languages), tried out Haskell as well as written one myself. From what I've seen, functional programming has several advantages over the classical imperative style: ...
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Maximum size of an Array in Javascript

Context: I'm building a little site that reads an rss feed, and updates/checks the feed in the background. I have one array to store data to display, and another which stores ID's of records that have been shown. ...
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Rails 2.3-style plugins and deprecation warnings running task in Heroku

I'm upgrading to Rails 3.2, and running rake db:migrate gives me several errors of the form: 8 Answers ...
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How do I remedy “The breakpoint will not currently be hit. No symbols have been loaded for this docu

A C# desktop application on the express edition worked, but then it didn't work 5 seconds later. 112 Answers ...
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MySQL: Enable LOAD DATA LOCAL INFILE

I'm running Mysql 5.5 on Ubuntu 12 LTS. How should I enable LOAD DATA LOCAL INFILE in my.cnf? 18 Answers ...
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How do you do a deep copy of an object in .NET? [duplicate]

I want a true deep copy. In Java, this was easy, but how do you do it in C#? 11 Answers ...