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How can I check if a file exists in Perl?
I have a relative path
8 Answers
8
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What does asterisk * mean in Python? [duplicate]
Does * have a special meaning in Python as it does in C? I saw a function like this in the Python Cookbook:
5 Answers
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What is Delegate? [closed]
I am confused that what is the actual role of a delegate?
13 Answers
13
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What is the difference between HTTP and REST?
After reading a lot about the differences between REST and SOAP, I got the impression that REST is just another word for HTTP. Can someone explain what functionality REST adds to HTTP?
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Undefined behavior and sequence points
What are "sequence points"?
5 Answers
5
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What's the difference between a word and byte?
I've done some research.
A byte is 8 bits and a word is the smallest unit that can be addressed on memory. The exact length of a word varies. What I don't understand is what's the point of having a byte? Why not say 8 bits?
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Can I have multiple primary keys in a single table?
Can I have multiple primary keys in a single table?
12 Answers
12
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How does database indexing work? [closed]
Given that indexing is so important as your data set increases in size, can someone explain how indexing works at a database-agnostic level?
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What is a database transaction?
Can someone provide a straightforward (but not simpler than possible) explanation of a transaction as applied to computing (even if copied from Wikipedia)?
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Git-Based Source Control in the Enterprise: Suggested Tools and Practices?
I use git for personal projects and think it's great. It's fast, flexible, powerful, and works great for remote development.
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