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What does the “at” (@) symbol do in Python?
I'm looking at some Python code which used the @ symbol, but I have no idea what it does. I also do not know what to search for as searching Python docs or Google does not return relevant results when the @ symbol is included.
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Method names for getting data [closed]
Warning: This is a not very serious question/discussion that I am posting... but I am willing to bet that most developers have pondered this "issue"...
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What's wrong with foreign keys?
I remember hearing Joel Spolsky mention in podcast 014 that he'd barely ever used a foreign key (if I remember correctly). However, to me they seem pretty vital to avoid duplication and subsequent data integrity problems throughout your database.
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Recursive Lock (Mutex) vs Non-Recursive Lock (Mutex)
POSIX allows mutexes to be recursive. That means the same thread can lock the same mutex twice and won't deadlock. Of course it also needs to unlock it twice, otherwise no other thread can obtain the mutex. Not all systems supporting pthreads also support recursive mutexes, but if they want to be P...
What exactly are unmanaged resources?
I want to know about unmanaged resources.
Can anyone please give me a basic idea?
7 Answers
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How can I backup a remote SQL Server database to a local drive?
I need to copy a database from a remote server to a local one. I tried to use SQL Server Management Studio, but it only backs up to a drive on the remote server.
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Automatic post-registration user authentication
...e run into a bit of a snag with the user registration flow: after the user creates an account, they should be automatically logged in with those credentials, instead of being immediately forced to provide their credentials again.
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Why start an ArrayList with an initial capacity?
The usual constructor of ArrayList is:
11 Answers
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When do you use the “this” keyword? [closed]
I was curious about how other people use the this keyword. I tend to use it in constructors, but I may also use it throughout the class in other methods. Some examples:
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C# Interfaces. Implicit implementation versus Explicit implementation
What are the differences in implementing interfaces implicitly and explicitly in C#?
12 Answers
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