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SQL/mysql - Select distinct/UNIQUE but return all columns?
... MySQL, if that's what you're using.)
You could fetch the distinct fields and stick to picking a single arbitrary row each time.
On some platforms (e.g. PostgreSQL, Oracle, T-SQL) this can be done directly using window functions:
select *
from (
select *,
row_number() over (partition...
Representing graphs (data structure) in Python
... ('E', 'F'), ('F', 'C')]
The data structure I've found to be most useful and efficient for graphs in Python is a dict of sets. This will be the underlying structure for our Graph class. You also have to know if these connections are arcs (directed, connect one way) or edges (undirected, connect bo...
Can we delete an SMS in Android before it reaches the inbox?
...by processing specially-formatted messages in order to show them in a nice Android-specific UI.
As of Android 1.6, incoming SMS message broadcasts (android.provider.Telephony.SMS_RECEIVED) are delivered as an "ordered broadcast" — meaning that you can tell the system which components should recei...
What does LayoutInflater in Android do?
What is the use of LayoutInflater in Android?
15 Answers
15
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Git: “Not currently on any branch.” Is there an easy way to get back on a branch, while keeping the
So I've done some work in the repository and when I'm about to commit I realize that I'm not currently on any branch.
9 Ans...
Javascript infamous Loop issue? [duplicate]
...e first example:
JavaScript's scopes are function-level, not block-level, and creating a closure just means that the enclosing scope gets added to the lexical environment of the enclosed function.
After the loop terminates, the function-level variable i has the value 5, and that's what the inner fu...
Force unmount of NFS-mounted directory [closed]
... @Daniel: sure, but it is a Linux question (tagged as such even), and Linux does have it.
– Jürgen A. Erhard
Jul 4 '11 at 13:05
5
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How do I add a password to an OpenSSH private key that was generated without a password?
I generated an OpenSSH private key using puttygen (and exported it in OpenSSH format). How can I put a password on this existing key (I know how to generate a new key with a password)?
...
How to initialize a dict with keys from a list and empty value in Python?
...dict.fromkeys([1, 2, 3], []), all of the keys are mapped to the same list, and modifying one will modify them all.
– charleslparker
Jun 26 '13 at 16:47
11
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“is” operator behaves unexpectedly with integers
...entation keeps an
array of integer objects for all
integers between -5 and 256, when you
create an int in that range you
actually just get back a reference to
the existing object. So it should be
possible to change the value of 1. I
suspect the behaviour of Python in
this case is und...