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Differences between INDEX, PRIMARY, UNIQUE, FULLTEXT in MySQL?
...allow them to be looked up more efficiently.
fulltext: a more specialized form of indexing that allows full text search. Think of it as (essentially) creating an "index" for each "word" in the specified column.
share
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Iterate two Lists or Arrays with one ForEach statement in C#
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You can use Union or Concat, the former removes duplicates, the later doesn't
foreach (var item in List1.Union(List1))
{
//TODO: Real code goes here
}
foreach (var item in List1.Concat(List1))
{
//TODO: Real code goes here
}
...
What is the reason behind “non-static method cannot be referenced from a static context”? [duplicate
...stance methods are the logic, instance fields are the data. Together, they form an object.
public class Foo
{
private String foo;
public Foo(String foo){ this.foo = foo; }
public getFoo(){ return this.foo; }
public static void main(String[] args){
System.out.println( getFoo...
What is thread contention?
...ad B will have to wait until thread A releases the lock.
Now, this is platform-specific, but the thread may experience slowdowns even if it never has to wait for the other thread to release the lock! This is because a lock protects some kind of data, and the data itself will often be contended as w...
java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare();
... };
Looper.loop();
}
AsyncTask
AsyncTask allows you to perform asynchronous work on your user interface. It performs the blocking operations in a worker thread and then publishes the results on the UI thread, without requiring you to handle threads and/or handlers yourself.
public ...
How do you configure an OpenFileDialog to select folders?
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@SoMoS, and others with the same problem: in file WindowsFormsApplication1.csproj edit line 100 so it matches your setup. In my case I had to change "9.0" to "10.0" (twice) and remove " (x86)" (twice).
– RenniePet
Jul 16 '11 at 1:41
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Multi-line regex support in Vim
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However, it seems that I can't perform lazy matching with this expression, even if I included it in parentheses? Is there any way to do it?
– xji
Sep 8 '16 at 18:07
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Reset local repository branch to be just like remote repository HEAD
...ch:
git reset --hard @{u}
The advantage of specifying @{u} or its verbose form @{upstream} is that the name of the remote repo and branch don't have to be explicitly specified. On Windows or with PowerShell, specify "@{u}" (with double quotes).
Next, as needed, remove untracked files, optionally al...
Android: How can I validate EditText input?
I need to do form input validation on a series of EditTexts. I'm using OnFocusChangeListeners to trigger the validation after the user types into each one, but this doesn't behave as desired for the last EditText.
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What is TypeScript and why would I use it in place of JavaScript? [closed]
... WebStorm offers nice IntelliSense on TypeScript now and is multiplatform.
– Radek
Jul 3 '13 at 11:52
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