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SQL Server Insert if not exists

I want to insert data into my table, but insert only data that doesn't already exist in my database. 10 Answers ...
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How do I instantiate a Queue object in java?

When I try: 8 Answers 8 ...
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How to recognize USB devices in Virtualbox running on a Linux host? [closed]

...It seems they are not detected by Virtualbox itself, since if I select the guest from the Virtualbox home (I'm using a Windows XP 3 guest), choose Settings -> USB -> Add filter from device, no devices is listed, even if an USB pen is attached and recognized by my Lubuntu 13.10. If i run the guest, n...
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How can I check if string contains characters & whitespace, not just whitespace?

What is the best way to check if a string contains only whitespace? 9 Answers 9 ...
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Setting UIButton image results in blue button in iOS 7

On iOS 6 SDK I wrote the following lines of code to display an image inside a button: 15 Answers ...
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What can I do to resolve a “Row not found or changed” Exception in LINQ to SQL on a SQL Server Compa

When executing SubmitChanges to the DataContext after updating a couple properties with a LINQ to SQL connection (against SQL Server Compact Edition) I get a "Row not found or changed." ChangeConflictException. ...
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Why can't I have abstract static methods in C#?

I've been working with providers a fair bit lately, and I came across an interesting situation where I wanted to have an abstract class that had an abstract static method. I read a few posts on the topic, and it sort of made sense, but is there a nice clear explanation? ...
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How to paste in a new line with vim?

I often have to paste some stuff on a new line in vim. What I usually do is: 14 Answers ...
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Adding List.add() another list

I have an IEnumerable<TravelDetails> and I am trying to add the vales in the for -loop to a List<TravelDetails> . I keep getting the errors. ...
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Create an instance of a class from a string

Is there a way to create an instance of a class based on the fact I know the name of the class at runtime. Basically I would have the name of the class in a string. ...