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How to check for Is not Null And Is not Empty string in SQL server?

How can we check in a SQL Server WHERE condition whether the column is not null and not the empty string ( '' )? 7 Answe...
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Java unchecked: unchecked generic array creation for varargs parameter

I have set Netbeans to show unchecked warnings in my Java code, but I am failing to understand the error on the following lines: ...
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How to do associative array/hashing in JavaScript

I need to store some statistics using JavaScript in a way like I'd do it in C#: 11 Answers ...
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What is ViewModel in MVC?

I am new to ASP.NET MVC. I have a problem with understanding the purpose of a ViewModel. 14 Answers ...
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Automatically expanding an R factor into a collection of 1/0 indicator variables for every factor le

I have an R data frame containing a factor that I want to "expand" so that for each factor level, there is an associated column in a new data frame, which contains a 1/0 indicator. E.g., suppose I have: ...
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Why C# fails to compare two object types with each other but VB doesn't?

I have two objects in C# and don't know if it's Boolean or any other type. However when I try to compare those C# fails to give the right answer. I have tried the same code with VB.NET and that did it ! ...
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How to define custom configuration variables in rails

I was wondering how to add custom configuration variables to a rails application and how to access them in the controller, for e.g I wanna be able to define an upload_directory in the configuration files say development.rb and be able to access it in one of my controllers. ...
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Android imageview not respecting maxWidth?

So, I have an imageview that should display an arbitrary image, a profile picture downloaded from the internet. I want this the ImageView to scale its image to fit inside the height of the parent container, and a set max width of 60dip. However, if the image is tall ratio-wise, and doesn't need the ...
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When to use enumerateObjectsUsingBlock vs. for

Besides the obvious differences: 6 Answers 6 ...
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Force IE compatibility mode off using tags

I am doing work for a client who forces compatibility mode on all intranet sites. I was wondering if there is a tag I can put into my HTML that forces compatibility mode off. ...