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What's wrong with nullable columns in composite primary keys?
...atch is that a constraint is not considered violated if the outcome of the test is UNKNOWN. This often makes it SEEM as if the comparison yields false, but it really doesn't.
– Erwin Smout
Feb 25 '15 at 14:06
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When to use symbols instead of strings in Ruby?
...ii")
# removed for brevity
end
write(data: 123, file: "test.txt")
freeze to keep as a string and save memory
label = 'My Label'.freeze
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How to change the button text of ?
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@Ya can you tell what browser and it version? Tested now on Chrome Version 43.0.2357.130 (64-bit) on Linux and all examples works perfectly.
– Fernando Kosh
Jul 6 '15 at 21:16
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BeautifulSoup Grab Visible Webpage Text
...rictly the visible text on a webpage. For instance, this webpage is my test case. And I mainly want to just get the body text (article) and maybe even a few tab names here and there. I have tried the suggestion in this SO question that returns lots of <script> tags and html comments wh...
CodeIgniter removing index.php from url
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this works for me. Answers above don't. I haven't tested the answers below.
– Jam Ville
Jun 2 '14 at 1:58
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Resize HTML5 canvas to fit window
...ure CSS approach adding to solution of @jerseyboy above.
Works in Firefox (tested in v29), Chrome (tested in v34) and Internet Explorer (tested in v11).
<!DOCTYPE html>
<html>
<head>
<style>
html,
body {
width: 100%;
height: 10...
Origin null is not allowed by Access-Control-Allow-Origin
...ax with local resources isn't going to work cross-browser.
If you're just testing something locally that you'll really be deploying to the web, rather than use local files, install a simple web server and test via http:// URLs instead. That gives you a much more accurate security picture.
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How to put more than 1000 values into an Oracle IN clause [duplicate]
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@ocdecio - my tests with Oracle 10g show different (and clearly worse) explain plans for the IN, compared to the JOIN. Personally I'd use the JOIN, and would recommend others to test different approaches to see differences in performance,...
Unable to import a module that is definitely installed
...ou optionally can repeat step two to see the location is now in the list.
Test step, try to import the package again... it works.
The downside? It is temporary, and you need to add it to the list each time.
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How to use HttpWebRequest (.NET) asynchronously?
...r, args) => {
args.Result = new WebClient().DownloadString(settings.test_url);
};
worker.RunWorkerCompleted += (sender, e) => {
if (e.Error != null) {
connectivityLabel.Text = "Error: " + e.Error.Message;
} else {
connectivityLabel.Text = "Connectivity OK";
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