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How to set SQL Server connection string?
I'm developing a simple C# application, I'd like to know this: When I connect my application to SQL Server on my PC, I know the connection string (server name, password etc.), but when I connect it to another PC, the SQL Server connection string is different. Is there a common account in SQL Server ...
What is a mutex?
...rom a thread, it merely gives it to you, and lock() returns - the mutex is now yours and only yours. Nobody else can steal it, because calling lock() will block him. There is also try_lock() that will block and return true when mutex is yours and immediately false if mutex is in use.
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Synchronization vs Lock
...e running 1.5
consider j.u.c.ReentrantLock. Java
6's intrinsic locking is now
comparable.
j.u.c.Lock has different mechanisms
for locking. Lock interruptable -
attempt to lock until the locking
thread is interrupted; timed lock -
attempt to lock for a certain amount
of time and ...
Is LINQ to SQL Dead or Alive?
...hat they have learnt a couple of lessons from the EFv1 fiasco and they are now copy-and-pasting a lot of the goodies from L2S into EF and pretending it is new EF stuff. In other words, L2S version two has just been "relabelled" EF.
3) LINQ as such (Language Integrated Query) is the best thing since...
How to write a Unit Test?
...ne the expected and desired output for a normal case, with correct input.
Now, implement the test by declaring a class, name it anything (Usually something like TestAddingModule), and add the testAdd method to it (i.e. like the one below) :
Write a method, and above it add the @Test annotation.
...
Redis strings vs Redis hashes to represent JSON: efficiency?
...:
If you use just single fields on most of your accesses.
If you always know which fields are available
P.S.: As a rule of the thumb, go for the option which requires fewer queries on most of your use cases.
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Math functions in AngularJS bindings
...
You have to inject Math into your scope, if you need to use it as
$scope know nothing about Math.
Simplest way, you can do
$scope.Math = window.Math;
in your controller.
Angular way to do this correctly would be create a Math service, I guess.
...
What is the Simplest Way to Reverse an ArrayList?
...T element = list.get(i);
result.add(element);
}
// result now holds a reversed copy of the original list
return result;
}
This is more efficient, but also more verbose.
Alternatively, we can rewrite the above to use Java 8's stream API, which some people find more concise and...
“Diff” an image using ImageMagick
...al image. Someone has written on an exact duplicate of the original image. Now, I need to compare the original to the written on image and extract just the writing in image format.
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Converting a Pandas GroupBy output from Series to DataFrame
...tland"] } )
g1 = df1.groupby( [ "Name", "City"] ).count().reset_index()
Now you have your new dataframe in g1:
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