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What's wrong with nullable columns in composite primary keys?
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In Oracle (I don't know about SQL Server), the table can contain many rows where all the columns in a unique constraint are null. However, if some column(s) in the unique constraint are not null and some are null then uniqueness is enforced.
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What exactly are unmanaged resources?
I want to know about unmanaged resources.
Can anyone please give me a basic idea?
7 Answers
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How to configure an app to run correctly on a machine with a high DPI setting (e.g. 150%)?
...ograms usable on high resolution monitors.
You have to explicitly let it know that you can handle higher DPI settings by adding the <dpiAware> element to your manifest. The MSDN page is here but it isn't complete since it is omitting the UAC settings. Project + Add New Item, pick "Applicati...
Batch file include external file for variables
...ead
set input=1
set input2=2
set /p input=INPUT:
set /p input2=INPUT2:
Now, we need to write the variables to a file.
(echo %input%)> settings.cdb
(echo %input2%)>> settings.cdb
pause
I use .cdb as a short form for "Command Database". You can use any extension.
The next section is to...
My attempt at value initialization is interpreted as a function declaration, and why doesn't A a(())
Among the many things Stack Overflow has taught me is what is known as the "most vexing parse", which is classically demonstrated with a line such as
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Wrapping a C library in Python: C, Cython or ctypes?
...hen calling the native functions.
One thing to note is that ctypes won't know about #define constants and stuff in the library you're using, only the functions, so you'll have to redefine those constants in your own code.
Here's an example of how the code ended up looking (lots snipped out, just t...
Sending data back to the Main Activity in Android
...nish()? It maybe clear to experts, but for the beginners would be good to know without referencing additional sources.
– Califf
Jul 1 '15 at 19:36
2
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Mock functions in Go
...more modular. In this case, the Downloader object's 'get_page' behavior is now pluggable--we can dynamically change its implementation. You only have to change your main code if it was badly written in the first place.
– weberc2
May 29 '14 at 13:37
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Call method in directive controller from other controller
...y initialize,so it can be appended
$scope.injectedObject = {};
// now i can directly calling invoke function from here
$scope.injectedObject.invoke();
}];
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How To: Execute command line in C#, get STD OUT results
...ful, which I use to eliminate the process window
pProcess.StartInfo.CreateNoWindow = true;
this helps to hide the black console window from user completely, if that is what you desire.
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