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Grouped LIMIT in PostgreSQL: show the first N rows for each group?
... For those who works with like millions rows and seeks for really performant way to do this - poshest's answer is the way to go. Just dont forget to spice ti up with proper indexing.
– Diligent Key Presser
Jun 20 '19 at 8:46
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ImportError: No module named requests
...quests is not a built in module (does not come with the default python installation), so you will have to install it:
OSX/Linux
Use $ sudo pip install requests (or pip3 install requests for python3) if you have pip installed. If pip is installed but not in your path you can use python -m pip ins...
Implement C# Generic Timeout
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The really tricky part here was killing the long running task through passing the executor thread from the Action back to a place where it could be aborted. I accomplished this with the use of a wrapped delegate that passes out th...
How to use a servlet filter in Java to change an incoming servlet request url?
... a check in the code if the URL needs to be changed and if not, then just call FilterChain#doFilter(), else it will call itself in an infinite loop.
Alternatively you can also just use an existing 3rd party API to do all the work for you, such as Tuckey's UrlRewriteFilter which can be configured th...
How do I adb pull ALL files of a folder present in SD Card
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The scripts will start in the top folder and recursively go down and find all the "*.jpg" files and pull them from your phone to the current directory.
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Difference between ActionBarSherlock and ActionBar Compatibility
...t a native one.
--EDIT--
It appears things have changed and there is actually no difference between ActionBarSherlock and the Action Bar Compatibility anymore. Please read the comments below for details.
--EDIT--
After having used both now, I can say that I actually prefer ActionBarSherlock to A...
Identifying and removing null characters in UNIX
...l with I/O redirection (<, >, …) anywhere in the command line, actually.
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How to access component methods from “outside” in ReactJS?
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class Parent extends React.Class {
constructor(props) {
this._child = React.createRef();
}
componentDidMount() {
console.log(this._child.current.someMethod()); // Prints 'bar'
}
render() {
return (
<div>
<Child ref=...
How to ignore deprecation warnings in Python
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This doesn't work for me at all, still seeing deprecationwarnings.
– user1244215
Oct 22 '13 at 0:43
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How do you round a number to two decimal places in C#?
...ults to MidPointRounding.ToEven (aka "Bankers Rounding") is because the we all learned to round in school where .5 rounds up causes too much rounding up. This is a problem when dealing with money, tax calculations, etc.
– asporter
Nov 11 '16 at 19:36
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