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What exactly is Arel in Rails 3.0?
I understand that it is a replacement for ActiveRecord and that it uses objects instead of queries.
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How to list records with date from the last 10 days?
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Is there StartsWith or Contains in t sql with variables?
I am trying to detect if the server is running Express Edition.
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How to work with complex numbers in C?
How can I work with complex numbers in C? I see there is a complex.h header file, but it doesn't give me much information about how to use it. How to access real and imaginary parts in an efficient way? Is there native functions to get module and phase?
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What does the thread_local mean in C++11?
I am confused with the description of thread_local in C++11. My understanding is, each thread has unique copy of local variables in a function. The global/static variables can be accessed by all the threads (possibly synchronized access using locks). And the thread_local variables are visible to...
How do I write data into CSV format as string (not file)?
I want to cast data like [1,2,'a','He said "what do you mean?"'] to a CSV-formatted string.
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SQL SELECT WHERE field contains words
I need a select which would return results like this:
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Java JUnit: The method X is ambiguous for type Y
I had some tests working fine. Then, I moved it to a different package, and am now getting errors. Here is the code:
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java: Class.isInstance vs Class.isAssignableFrom
Let clazz be some Class and obj be some Object .
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What's the meaning of 'origin' in 'git push origin master'
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