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Is there a REAL performance difference between INT and VARCHAR primary keys?
...te key. Only you can assess if the benefit of this is significant in your application.
That is, you can measure the queries in your application that are the most important to be speedy, because they work with large volumes of data or they are executed very frequently. If these queries benefit f...
Best practices for Storyboard login screen, handling clearing of data upon logout
I'm building an iOS app using a Storyboard. The root view controller is a Tab Bar Controller. I'm creating the login/logout process, and it's mostly working fine, but I've got a few issues. I need to know the BEST way to set all this up.
...
Unsupported major.minor version 52.0 [duplicate]
...Make sure the JDK home path is set to 1.8.
Restart IntelliJ IDEA.
Another approach which might help is by instructing IntelliJ IDEA which JDK version to start up with.
Go to: /Applications/IntelliJ\ IDEA\ 15\ CE.app/Contents/Info.plist
and replace the JVM version with:
<key>JVMVersion</key...
ADB No Devices Found
I am attempting to install an Android app on my brand new Nexus 10 . I have a .apk file. I have downloaded the Android SDK, installed "Android SDK Tools", "Android SDK Platform-tools", and Google USB Driver. I have checked the setting on my Nexus 10 for "Unknown Sources".
...
MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术
...VERIFY(m_wndAboutButton.Create(_T("MyAbout"),
"" WS_VISIBLE,rc,this,ID_APP_ABOUT));
"// TODO: Remove this if you don't want tool tips or a resizeable toolbar
"m_wndToolBar.SetBarStyle(m_wndToolBar.GetBarStyle() |
"CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC);
再在RecalcLayout函数里...
jQuery Ajax calls and the Html.AntiForgeryToken()
I have implemented in my app the mitigation to CSRF attacks following the informations that I have read on some blog post around the internet. In particular these post have been the driver of my implementation
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How to delete all Annotations on a MKMapView
... all pins, add
the user location pin back, but there is a flaw with this approach, it
will cause the user location pin to blink on the map, due to removing
the pin then adding it back
- (void)removeAllPinsButUserLocation1
{
id userLocation = [mapView userLocation];
[mapView removeAn...
The type or namespace name 'Objects' does not exist in the namespace 'System.Data'
I am using entities, C# and SQL Server to create an n-tier app. I am creating some base classes common to all my DAL components. In this base class, i want to handle the connection state of the ObjectContext base class inherited by entities object.
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Where is svcutil.exe in Windows 7?
For my WCF, I need to generate configuration file for my client application to specify things such as binding of service, the address of the service and the contract.
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possible EventEmitter memory leak detected
... This is the CORRECT ANSWER! I honestly think that the maxListener warning appears mostly because of some buggy codes. In my case it was the mysql code. I will try to put an answer just to give a clarity for that.
– Adrian
Mar 3 at 3:54
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