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What is the difference between Left, Right, Outer and Inner Joins?
...00 rows (100 students x 50 lockers). Could be useful (with filtering) as a starting point to match up the new students with the empty lockers.
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Android: Clear the back stack
...o
good effect in conjunction with
FLAG_ACTIVITY_NEW_TASK: if used to
start the root activity of a task, it
will bring any currently running
instance of that task to the
foreground, and then clear it to its
root state. This is especially useful,
for example, when launching an
activi...
How to show the last queries executed on MySQL?
...n. /var/log /var/data/log /opt /home/mysql_savior/var
You don't have to restart the server and interrupt any current connections to it.
restarting the server leaves you where you started (log is by default still off)
For more information, see
MySQL 5.1 Reference Manual - Server System Variables -...
What exactly are DLL files, and how do they work?
...without updating the EXE itself.
Loading a DLL:
A program loads a DLL at startup, via the Win32 API LoadLibrary, or when it is a dependency of another DLL. A program uses the GetProcAddress to load a function or LoadResource to load a resource.
Further reading:
Please check MSDN or Wikipedia fo...
How to draw a line in android
... canvas.drawLine(20, 0, 0, 20, paint);
}
}
The activity to start it:
StartDraw.java
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
public class StartDraw extends Activity {
DrawView drawView;
@Override
public void onCreate(Bundle...
How to asynchronously call a method in Java
...ad(new Runnable() {
public void run() {
//Do whatever
}
}).start();
(At least in Java 8), you can use a lambda expression to shorten it to:
new Thread(() -> {
//Do whatever
}).start();
As simple as making a function in JS!
...
async/await - when to return a Task vs void?
...,
public static async void AsyncMethod2(int num)
{
await Task.Factory.StartNew(() => Thread.Sleep(num));
}
Yes, use async and await here, they make sure your method still works correctly if an exception is thrown.
for more information see: http://msdn.microsoft.com/en-us/magazine/jj991977...
ASP.NET: HTTP Error 500.19 – Internal Server Error 0x8007000d
...oad proper version, remove the current one and re-install, close IIS and restart IIS, now I can see "URL Rewrite".
– Box Very
Sep 19 '16 at 22:47
...
Best way to store time (hh:mm) in a database
...
DATETIME start DATETIME end
I implore you to use two DATETIME values instead, labelled something like event_start and event_end.
Time is a complex business
Most of the world has now adopted the denery based metric system for most...
Mercurial - all files that changed in a changeset?
...s that changed through a range of changesets, it's as easy as:
hg log -r [start rev]:[end rev] --template "{file_mods}{file_adds}\n" | sed -e 's/ /\n/g' | sort -d | uniq
hg log -r [start rev]:[end rev] --template "{file_mods}{file_adds}\n" will show you a list of each file changed or added in ea...