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Join vs. sub-query
...M foo
GROUP BY moo
HAVING bar LIKE 'SpaceQ%'
) AS temp_foo
ORDER BY bar
You can nest sub-queries in multiple levels. This can help on huge datasets if you have to group or sort the results. Usually the DB-Server creates a temporary table for this, but sometimes you do not need sort...
Asynchronous shell commands
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Cool, crazy how everything combines, I think the ordering would get to me at first, but I suppose you could just memorize it ( what you wrote or "nohup cmd & > /dev/null 2>&1" :) )
– LorenVS
Mar 3 '10 at 21:38
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How does generic lambda work in C++14?
...each occurrence of auto in the lambda’s parameter-declaration-clause, in order of appearance.
The invented type template-parameter is a parameter pack if the corresponding parameter-declaration declares
a function parameter pack (8.3.5). The return type and function parameters of the function ...
How to remove the arrow from a select element in Firefox
...e on a combobox now remove
the dropdown button (bug 649849).
So now in order to hide the default arrow - it's as easy as adding the following rules on our select element:
select {
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
}
DEMO
select {
margin: 50px;...
overlay opaque div over youtube iframe
...ht="330" src="http://www.youtube.com/embed/NWHfY_lvKIQ?wmode=opaque" frameborder="0"></iframe>
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Get context of test project in Android junit test case
...omeone help about what dependencies need to be added in the gradle file in order for this to work?
– Greg
Sep 23 '16 at 10:09
1
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Are std::vector elements guaranteed to be contiguous?
...stion is simple: are std::vector elements guaranteed to be contiguous? In order word, can I use the pointer to the first element of a std::vector as a C-array?
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Left-pad printf with spaces
...Note, Ray Hulha has removed the string literal concatenation, evidently in order to fix a "compiler issue".
– mwfearnley
Oct 1 '17 at 14:03
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How do sessions work in Express.js with Node.js?
...a cookie with assigned session ID, which should be signed with a secret in order to prevent forgery.
If so, where can I find that cookie? If required, how do I decode it?
You shouldn't mess with a session cookie on the client side. If you want to work with sessions on the server side you shoul...
How to tell Xcode where my info.plist and .pch files are
...storyboard files in finder, but my Xcode project did not pick them up. In order to add files to your xcodeproj just right click on the project or folder in the Project Navigator and select Add Files to "Your Project Name". You should be able to select the files you need (use Cmd key to select mult...