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How to use count and group by at the same select statement
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If you want to order by count (sound simple but i can`t found an answer on stack of how to do that) you can do:
SELECT town, count(town) as total FROM user
GROUP BY town ORDER BY total DESC
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In what areas might the use of F# be more appropriate than C#? [closed]
...nto the calculation engine was in the form of vectors and matrices. Higher order functions eat these for breakfast with minimal fuss, minimal code. Beautiful.
Lack of bugs Functional programming can feel strange. I can be working on an algorithm, trying hard to get the code to pass the type checker...
How does this code generate the map of India?
... character. In the second, decimal 33 is ASCII for '!'. Toggling the low-order bit of 33 gives you 32, which is ASCII for a space. This causes ! to be printed if b is odd, and a blank space to be printed if b is even. The rest of the code is simply there to walk the "pointer" a through the strin...
Check if two unordered lists are equal [duplicate]
I'm looking for an easy (and quick) way to determine if two unordered lists contain the same elements:
8 Answers
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IntelliJ Organize Imports
...mport" as described by Dave.
You can also modify how the imports are auto-ordered under "Settings → Editor → Code Style → Java → Imports"
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How to use sidebar with the keyboard in Sublime Text 2 and 3?
...trl + b will show/hide the sidebar. Make sure you hit K and B in the right order
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Difference between natural join and inner join
...ls, etc. SQL doesn't treat tables as relations because it relies on column ordering etc.
The idea behind NATURAL JOIN in SQL is to make it easier to be more faithful to the relational model. The result of the NATURAL JOIN of two tables will have columns de-duplicated by name, hence no anonymous col...
Restoring state of TextView after screen rotation?
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In order to retain data on orientation change you need to implement the two methods:
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
// Read...
Does Python optimize tail recursion?
...on't need such a feature, I am very happy
with the code above. However, in order to provide a more general module, I thought
a little more in order to find some workaround for this issue (see next section).
Concerning the speed of this process (which isn't the real issue however), it happens
to be ...
Best way to list files in Java, sorted by Date Modified?
...les() and the documentation states that this makes no guarantees about the order of the files returned. Therefore you need to write a Comparator that uses File.lastModified() and pass this, along with the array of files, to Arrays.sort().
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