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What does character set and collation mean exactly?
I can read the MySQL documentation and it's pretty clear. But, how does one decide which character set to use? On what data does collation have an effect?
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What is the >>>= operator in C?
Given by a colleague as a puzzle, I cannot figure out how this C program actually compiles and runs. What is this >>>= operator and the strange 1P1 literal? I have tested in Clang and GCC. There are no warnings and the output is "???"
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Most efficient way to reverse a numpy array
Believe it or not, after profiling my current code, the repetitive operation of numpy array reversion ate a giant chunk of the running time. What I have right now is the common view-based method:
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How to open a URL in a new Tab using JavaScript or jQuery? [duplicate]
How to open a URL in new tab instead of new window programatically?
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In a Git repository, how to properly rename a directory?
I think it should work to copy the directory to be renamed to a new directory with desired name, and delete the old directory , and git add , git commit and push everything. But is this the best way?
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What is an application binary interface (ABI)?
I never clearly understood what an ABI is. Please don't point me to a Wikipedia article. If I could understand it, I wouldn't be here posting such a lengthy post.
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INNER JOIN vs LEFT JOIN performance in SQL Server
I've created SQL command that uses INNER JOIN on 9 tables, anyway this command takes a very long time (more than five minutes). So my folk suggested me to change INNER JOIN to LEFT JOIN because the performance of LEFT JOIN is better, despite what I know. After I changed it, the speed of query got si...
How to identify numpy types in python?
How can one reliably determine if an object has a numpy type?
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Does Swift have access modifiers?
In Objective-C instance data can be public , protected or private . For example:
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How was the first compiler written?
I heard about the chicken and the egg and bootstrapping. I have a few questions.
6 Answers
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