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How to select multiple rows filled with constants?
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In PostgreSQL, you can do:
SELECT *
FROM (
VALUES
(1, 2),
(3, 4)
) AS q (col1, col2)
In other systems, just use UNION ALL:
SELECT 1 AS col1, 2 AS col2
-- FROM dual
-- uncomment the line above if in Oracle...
ImportError: No Module Named bs4 (BeautifulSoup)
...o your system python can import it, but not your virtualenv python.
If you do not need bs4 to be installed in your system python path, uninstall it and keep it in your virtualenv.
For more information about virtualenvs, read this
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Is there an easy way to create ordinals in C#?
...s
As you can see, there is nothing in there about ordinals, so it can't be done using String.Format. However its not really that hard to write a function to do it.
public static string AddOrdinal(int num)
{
if( num <= 0 ) return num.ToString();
switch(num % 100)
{
case 11:
...
Detecting iOS / Android Operating system
I've done some research, and this question has come up, but not in the way I intend. I'm building a page for a client that is a QR code landing, which is a place to download an application. So he doesn't have to print out 2 QR codes on a page, I'd like to detect the current operating system (Apple...
Find the Smallest Integer Not in a List
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If the datastructure can be mutated in place and supports random access then you can do it in O(N) time and O(1) additional space. Just go through the array sequentially and for every index write the value at the index to the index specified by value, recursively placing any value at t...
What is bootstrapping?
...er, it seems as though everyone is just supposed to know what it means. I don't, though. Near as I can figure, it has something to do with initialization tasks required of an application upon launch, but I could be completely wrong about that. Can anyone help me to understand this idea?
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How to load external webpage inside WebView
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Dont forget to add Permission <uses-permission android:name="android.permission.INTERNET" />
– star18bit
Jun 5 '13 at 5:38
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Command line for looking at specific port
Is there a way to examine the status of a specific port from the Windows command line? I know I can use netstat to examine all ports but netstat is slow and looking at a specific port probably isn't.
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Is there a way to change context to iframe in javascript console?
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You can also navigate across frames using the command line:
var frame = document.getElementById("frame1").contentWindow;
cd(frame);
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Sending command line arguments to npm script
...inal answer: As a some kind of workaround (though not very handy), you can do as follows:
Say your package name from package.json is myPackage and you have also
"scripts": {
"start": "node ./script.js server"
}
Then add in package.json:
"config": {
"myPort": "8080"
}
And in your scrip...