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Change SVN repository URL

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Why is document.body null in my javascript?

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How big should a UIBarButtonItem image be?

I'm looking to create my own custom Sort By Date and Sort By Number buttons that I plan on placing in the navigation bar as the right button. ...
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Android Preferences: How to load the default values when the user hasn't used the preferences-screen

I am using a PreferenceActivity to let the user set some values. I am feeding it the xml file with the defined preferences. ...
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ALTER TABLE, set null in not null column, PostgreSQL 9.1

I have a table with not null column, How to set a null value in this column as default? 4 Answers ...
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R data formats: RData, Rda, Rds etc

What are the main differences between .RData, .Rda and .Rds files? 2 Answers 2 ...
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Format bytes to kilobytes, megabytes, gigabytes

Scenario: the size of various files are stored in a database as bytes. What's the best way to format this size info to kilobytes, megabytes and gigabytes? For instance I have an MP3 that Ubuntu displays as "5.2 MB (5445632 bytes)". How would I display this on a web page as "5.2 MB" AND have files le...
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How do you implement an async action delegate method?

I am learning the Web API stack and I am trying to encapsulate all data in the form of a "Result" object with parameters such as Success and ErrorCodes. ...
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What's the difference between returning void and returning a Task?

In looking at various C# Async CTP samples I see some async functions that return void , and others that return the non-generic Task . I can see why returning a Task<MyType> is useful to return data to the caller when the async operation completes, but the functions that I've seen that ha...
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Find difference between timestamps in seconds in PostgreSQL

I have a table in PostgreSQL 8.3 with 2 timestamp columns. I would like to get the difference between these timestamps in seconds. Could you please help me how to get this done? ...