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Is an index needed for a primary key in SQLite?
When an integer column is marked as a primary key in an SQLite table, should an index be explicitly created for it as well? SQLite does not appear to automatically create an index for a primary key column, but perhaps it indexes it anyway, given its purpose? (I will be searching on that column all t...
Python Nose Import Error
...ve set up the simplest example that demonstrates the problem. I'll explain it below.
9 Answers
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Difference between shadowing and overriding in C#?
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Well inheritance...
suppose you have this classes:
class A {
public int Foo(){ return 5;}
public virtual int Bar(){return 5;}
}
class B : A{
public new int Foo() { return 1;} //shadow
public override int Bar() {return...
Smart way to truncate long strings
... anyone have a more sophisticated solution/library for truncating strings with JavaScript and putting an ellipsis on the end, than the obvious one:
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How to construct a REST API that takes an array of id's for the resources
...d Dec 27 '10 at 20:04
Florin DumitrescuFlorin Dumitrescu
7,64833 gold badges3030 silver badges2929 bronze badges
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Using Sinatra for larger projects via multiple files
It seems that in Sinatra all route handlers are being written into a single file, if I understand right it acts as a one large/small controller. Is there any way to split it into separate independent files, so when let's say somebody calls "/" - one action is executed, and if smth like "/posts/2" is...
What Xcode keyboard shortcuts do you use regularly? [closed]
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edited Feb 8 '17 at 14:33
community wiki
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Using ViewPagerIndicator library with Android Studio and Gradle
... to use Jake Wharton's ViewPagerIndicator library , but I'm unable to get it working with my Gradle project in Android Studio.
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Failed to Attach to Process ID Xcode
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Didn't worked for me. Still shows a black screen with status bar (even cleaned the code). After changing debugger to GDB as Imran mentioned, my app loads fine.
– user427969
Nov 26 '12 at 4:20
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SQL Joins Vs SQL Subqueries (Performance)?
...t query to be quicker, mainly because you have an equivalence and an explicit JOIN. In my experience IN is a very slow operator, since SQL normally evaluates it as a series of WHERE clauses separated by "OR" (WHERE x=Y OR x=Z OR...).
As with ALL THINGS SQL though, your mileage may vary. The spee...