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How can you represent inheritance in a database?
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@Bill Karwin describes three inheritance models in his SQL Antipatterns book, when proposing solutions to the SQL Entity-Attribute-Value antipattern. This is a brief overview:
Single Table Inheritance (aka Table Per Hierarchy Inheritance):
Using a single tabl...
How to convert all text to lowercase in Vim
How do you convert all text in Vim to lowercase? Is it even possible?
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receiver type *** for instance message is a forward declaration
In my iOS5 app, I have NSObject States class, and trying to init it:
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client secret in OAuth 2.0
To use google drive api, I have to play with the authentication using OAuth2.0. And I got a few question about this.
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How do I hide an element when printing a web page?
...ge to print the webpage. However, the link is also visible in the printout itself.
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Problems with DeploymentItem attribute
I'm currently maintaining an "old" system written in C#.net, removing some obsolete features and doing some refactoring. Thanks god, the previous guy wrote some unit tests (MSTests). I quite comfortable with JUnit tests, but didn't do yet much with MSTests.
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Firing a double click event from a WPF ListView item using MVVM
In a WPF application using MVVM, I have a usercontrol with a listview item. In run time, it will use databinding to fill the listview with a collection of objects.
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What do the parentheses around a function name mean?
In one of my project source files, I found this C function definition:
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How can you encode a string to Base64 in JavaScript?
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btoa() accepts a “string” where each character represents an 8-bit byte – if you pass a string containing characters that can’t be represented in 8 bits, it will probably break. This isn’t a problem if you’re actually treating the string as a byte array, but if you’re trying to ...
Copying files into the application folder at compile time
...o copy from my project into the .\bin\debug\ folder on compilation, then it seems I have to put them into the root of the project. Putting them into a subfolder seems to copy them into the .\bin\debug\ folder in the same structure they're stored in.
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