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Why is SELECT * considered harmful?
...s especially true when someone adds new columns to underlying tables that didn't exist and weren't needed when the original consumers coded their data access.
Indexing issues. Consider a scenario where you want to tune a query to a high level of performance. If you were to use *, and it returned m...
Why is using the rails default_scope often recommend against?
...the internet people mention that using the rails default_scope is a bad idea, and the top hits for default_scope on stackoverflow are about how to overwrite it. This feels messed up, and merits an explicit question (I think).
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event Action vs event EventHandler
...sign pattern of virtually any other event in the system, which I would consider a drawback.
One upside with the dominating design pattern (apart from the power of sameness) is that you can extend the EventArgs object with new properties without altering the signature of the event. This would still...
What to use instead of “addPreferencesFromResource” in a PreferenceActivity?
...ced the fact that the method addPreferencesFromResource(int preferencesResId) is marked deprecated in Android's documentation ( Reference Entry ).
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Get value of dynamically chosen class constant in PHP
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$id = constant("ThingIDs::$thing");
http://php.net/manual/en/function.constant.php
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How to implement “confirmation” dialog in Jquery UI dialog?
...lert() box.
In my scenario, I have a list of items, and next to each individual of them, I would have a "delete" button for each of them.
the psuedo html setup will be something follows:
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Why doesn't Java allow generic subclasses of Throwable?
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As mark said, the types are not reifiable, which is a problem in the following case:
try {
doSomeStuff();
} catch (SomeException<Integer> e) {
// ignore that
} catch (SomeException<String> e) {
crashAndBurn()
}
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Handler is abstract ,cannot be instantiated
...dler class
import java.util.logging.Handler;
Change it to
import android.os.Handler;
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How can I temporarily disable a foreign key constraint in MySQL?
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This worked for me after trying the 'best answer' didn't work for me. Perhaps an explanation of the difference could be added.
– hexnet
Aug 27 '15 at 12:37
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Android Camera Preview Stretched
I've been working on making my custom camera activity on Android, but when rotating the camera, the aspect ratio of the surface view gets messed up.
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