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Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
I've heard that SELECT * is generally bad practice to use when writing SQL commands because it is more efficient to SELECT columns you specifically need.
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Why must wait() always be in synchronized block
We all know that in order to invoke Object.wait() , this call must be placed in synchronized block, otherwise an IllegalMonitorStateException is thrown. But what's the reason for making this restriction? I know that wait() releases the monitor, but why do we need to explicitly acquire the mon...
Proper use of beginBackgroundTaskWithExpirationHandler
I'm a bit confused about how and when to use beginBackgroundTaskWithExpirationHandler .
5 Answers
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What are some better ways to avoid the do-while(0); hack in C++?
When the code flow is like this:
27 Answers
27
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What is the most compatible way to install python modules on a Mac?
I'm starting to learn python and loving it. I work on a Mac mainly as well as Linux. I'm finding that on Linux (Ubuntu 9.04 mostly) when I install a python module using apt-get it works fine. I can import it with no trouble.
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Understanding Python's “is” operator
What does it really mean?
11 Answers
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How can I hash a password in Java?
I need to hash passwords for storage in a database. How can I do this in Java?
13 Answers
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What is a “static” function in C?
The question was about plain c functions, not c++ static methods, as clarified in comments.
12 Answers
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Stash only one file out of multiple files that have changed with Git?
How can I stash only one of multiple changed files on my branch?
33 Answers
33
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Static linking vs dynamic linking
Are there any compelling performance reasons to choose static linking over dynamic linking or vice versa in certain situations? I've heard or read the following, but I don't know enough on the subject to vouch for its veracity.
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