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Difference between Document-based and Key/Value-based databases?
I know there are three different, popular types of non-sql databases.
2 Answers
2
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Spring Boot - parent pom when you already have a parent pom
...e a "bom" (c.f. Spring and Jersey other projects that support this feature now), and include it only in the dependency management section with scope=import.That way you get a lot of the benefits of using it (i.e. dependency management) without replacing the settings in your actual parent.
The 2 mai...
Zoom in on a point (using scale and translate)
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i finally solved it, took me 3 minutes now after about 2weeks of doing something else
– csiz
Jun 30 '10 at 17:54
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Using the field of an object as a generic Dictionary key
...interfaces required for it to be used as a key. Dictionary has no direct knowledge of int or any other type.
– Jim Mischel
Mar 11 '09 at 15:58
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Literal notation for Dictionary in C#?
...ng>
{
{ "test", "val" },
{ "test2", "val2" }
};
In C# 6, you now have the option of using a more intuitive syntax with Dictionary as well as any other type that supports indexers. The above statement can be rewritten as:
var data = new Dictionary<string, string>
{
["test"] =...
Eclipse debugger always blocks on ThreadPoolExecutor without any obvious exception, why?
...ture that (among other things) forces the renewal of its threads.
This is now fixed from versions 7.0.54 and 8.0.6 of tomcat :
https://issues.apache.org/bugzilla/show_bug.cgi?id=56492
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impro...
How do you know when to use fold-left and when to use fold-right?
...accumulator function x
fold x [A, B, C, D]
thus equals
A x B x C x D
Now you just have to reason about the associativity of your operator (by putting parentheses!).
If you have a left-associative operator, you'll set the parentheses like this
((A x B) x C) x D
Here, you use a left fold. Ex...
What is the lifetime of a static variable in a C++ function?
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[2] In C++11 statics are initialized in a thread safe way, this is also known as Magic Statics.
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Using do block vs braces {}
...ctures (if, while, case, etc.)
The second, less-frequently seen style is known as semantic, or "Weirich Braces", proposed by the late, great rubyist Jim Weirich:
Use do end for procedural blocks
Use braces { } for functional blocks
This means that when the block is evaluated for its return valu...
Modify request parameter with servlet filter
...h my values in controller and I have set tha parameter(email and pass) ... now how can i replace the values in my servlet <property name="username" value="somemail@gmail.com" /> //Change email on logging in <property name="password" val...