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Rebasing and what does one mean by rebasing pushed commits

It is often said that, you should not rebase commits that you have already pushed. What could be meaning of that? 4 Answer...
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What is the __del__ method, How to call it?

I am reading a code. There is a class in which __del__ method is defined. I figured out that this method is used to destroy an instance of the class. However, I cannot find a place where this method is used. The main reason for that is that I do not know how this method is used, probably not like ...
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What's the difference between a catalog and a schema in a relational database?

I used to think schema were the "upper wrapper" object before the database itself. I mean DB.schema.<what_ever_object_name_under_schema> . ...
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How to serialize an object to XML without getting xmlns=“…”?

Is there a way for me to serialize an object in .NET without the XML Namespaces automatically serializing also? It seems that by default .NET believes the XSI and XSD namespaces should be included, but I don't want them there. ...
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How do I iterate through each element in an n-dimensional matrix in MATLAB?

I have a problem. I need to iterate through every element in an n-dimensional matrix in MATLAB. The problem is, I don't know how to do this for an arbitrary number of dimensions. I know I can say ...
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SecItemAdd and SecItemCopyMatching returns error code -34018 (errSecMissingEntitlement)

Sometimes when I run an application on device from Xcode I would try to access the keychain but fail due to error -34018. This doesn't match any of the documented keychain error codes and can't be consistently reproduced. (happens maybe 30% of the time, and it's not clear to me why it happens). What...
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Is it possible to rename a maven jar-with-dependencies?

I'm currently using the jar-with-dependencies assembly to create such a jar. However, the name of my jar is a bit long. ...
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Measure time in Linux - time vs clock vs getrusage vs clock_gettime vs gettimeofday vs timespec_get?

Among the timing functions, time , clock getrusage , clock_gettime , gettimeofday and timespec_get , I want to understand clearly how they are implemented and what are their return values in order to know in which situation I have to use them. ...
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What is the usefulness of PUT and DELETE HTTP request methods?

... DELETE is for deleting the request resource: The DELETE method requests that the origin server delete the resource identified by the Request-URI. This method MAY be overridden by human intervention (or other means) on the origin server. The client cannot be guaranteed that the ope...
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What is a domain specific language? Anybody using it? And in what way?

I guess I am looking for some kind of intro and see if anybody have used it. Are there any particular advantages of using it? ...