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Difference between EXISTS and IN in SQL?
...
The exists keyword can be used in that way, but really it's intended as a way to avoid counting:
--this statement needs to check the entire table
select count(*) from [table] where ...
--this statement is true as soon as one match is found
exists ( select * from [table] where ... ...
How to handle Handler messages when activity/fragment is paused
... * Used for "what" parameter to handler messages
*/
final static int MSG_WHAT = ('F' << 16) + ('T' << 8) + 'A';
final static int MSG_SHOW_DIALOG = 1;
int value = 1;
final static class State extends Fragment {
static final String TAG = "State";
/**...
Difference of keywords 'typename' and 'class' in templates?
...
typename and class are interchangeable in the basic case of specifying a template:
template<class T>
class Foo
{
};
and
template<typename T>
class Foo
{
};
are equivalent.
Having said that, there are specific cases where there is...
How to detect when an Android app goes to the background and come back to the foreground
...) methods are called when the application is brought to the background and into the foreground again. However, they are also called when the application is started for the first time and before it is killed. You can read more in Activity.
There isn't any direct approach to get the application statu...
How to listen for a WebView finishing loading a URL?
I have a WebView that is loading a page from the Internet. I want to show a ProgressBar until the loading is complete.
...
How to call Stored Procedure in Entity Framework 6 (Code-First)?
...edure:
CREATE PROCEDURE [dbo].[GetResultsForCampaign]
@ClientId int
AS
BEGIN
SET NOCOUNT ON;
SELECT AgeGroup, Gender, Payout
FROM IntegrationResult
WHERE ClientId = @ClientId
END
create a class that looks like:
public class ResultForCampaign
{
...
Pointers in Python?
I know Python doesn't have pointers, but is there a way to have this yield 2 instead
9 Answers
...
What is Java String interning?
What is String Interning in Java, when I should use it, and why ?
7 Answers
7
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IOException: read failed, socket might closed - Bluetooth on Android 4.3
...teDevice().getClass();
Class<?>[] paramTypes = new Class<?>[] {Integer.TYPE};
Method m = clazz.getMethod("createRfcommSocket", paramTypes);
Object[] params = new Object[] {Integer.valueOf(1)};
fallbackSocket = (BluetoothSocket) m.invoke(tmp.getRemoteDevice(), params);
fallbackSocket.co...
How to write a scalable Tcp/Ip based server
...em.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName());
System.Net.IPEndPoint serverEndPoint;
try
{
serverEndPoint = new System.Net.IPEndPoint(localhost.AddressList[0], _port);
}
catch (System.ArgumentOutOfRangeException e)
{
throw new ArgumentOutOfRangeException("Port number ent...