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SQL select only rows with max value on a column [duplicate]
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I am flabbergasted that no answer offered SQL window function solution:
SELECT a.id, a.rev, a.contents
FROM (SELECT id, rev, contents,
ROW_NUMBER() OVER (PARTITION BY id ORDER BY rev DESC) rank
FROM YourTable) a
WHERE a.rank = 1
Added in S...
How to combine paths in Java?
...", "to", "file.txt")
// relative unix path: ./path/to/file.txt
// relative windows path: .\path\to\filee.txt
java.nio.file.Paths.get("/", "path", "to", "file.txt")
// absolute unix path: /path/to/filee.txt
// windows network drive path: \\path\to\file.txt
java.nio.file.Paths.get("C:", "path", "to"...
Android Studio: how to remove/update the “Created by” comment added to all new classes?
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From the menu bar:
on Mac OS choose Android Studio -> Preferences
on Windows and Linux choose File -> Settings
Then look for Editor -> File and Code Templates in the left hand pane.
You have two ways you can change this...
1) Select the Includes tab and edit the Created by... text di...
Timer function to provide time in nano seconds using C++
...eeBSD
clock_gettime(CLOCK_REALTIME, &ts); // Works on Linux
}
For windows you want to use the QueryPerformanceCounter. And here is more on QPC
Apparently there is a known issue with QPC on some chipsets, so you may want to make sure you do not have those chipset. Additionally some dual cor...
Run an app on a multiple devices automatically in Android Studio
...02-release-1483-b03 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows Server 2016 10.0
In this update they have added in-built option to run application on multiple devices.
The IDE has a new drop-down menu that lets you quickly select which
device you'd like to deploy your app ...
Stop pip from failing on single package when installing with requirements.txt
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For windows :) FOR /F %k in (requirements.txt) DO pip install %k
– wcyn
Aug 25 '19 at 8:22
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What's the maximum value for an int in PHP?
....5.
64-bit platforms usually have a maximum value of about 9E18, except on Windows prior to PHP 7, where it was always 32 bit.
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ReactJS SyntheticEvent stopPropagation() only works with React events?
...check out Jim's answer, which suggests adding the global click listener to window instead of document: stackoverflow.com/a/52879137/438273
– jsejcksn
Jan 1 at 5:07
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“icon-bar” in twitter bootstrap navigation bar
...that looks like ≡ on narrow browser screens. You can resize your browser window (by making it narrow) to see how the navbar is replaced by that button.
The three span tags create three horizontal lines that look like a button, commonly known as the "burger" icon.
Take a look at icon-bar in boots...
Python 3: ImportError “No Module named Setuptools”
...t version:
On Linux or OS X:
pip install -U pip setuptools
On Windows:
python -m pip install -U pip setuptools
Therefore the rest of this post is probably obsolete (e.g. some links don't work).
Distribute - is a setuptools fork which "offers Python 3 support". Installation instruct...