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How to use count and group by at the same select statement
I have an sql select query that has a group by.
I want to count all the records after the group by statement.
Is there a way for this directly from sql?
For example, having a table with users I want to select the different towns and the total number of users
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Nginx — static file serving confusion with root & alias
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This is all great (it helped me fix my config issues), but I wonder what logging settings people could use to help diagnose these kinds of problems? Like, anything that would print to logs stuff like "received request for [...], mat...
DbEntityValidationException - How can I easily tell what caused the error?
I have a project that uses Entity Framework. While calling SaveChanges on my DbContext , I get the following exception:
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Is there a way to take a screenshot using Java and save it to some sort of image?
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Believe it or not, you can actually use java.awt.Robot to "create an image containing pixels read from the screen." You can then write that image to a file on disk.
I just tried it, and the whole thing ends up like:
Rectangle screenRect = new Rectangle(T...
How to prevent blank xmlns attributes in output from .NET's XmlDocument?
...:name-space-1.0"));
Console.WriteLine(xml.OuterXml);
Thanks everyone to all your answers which led me in the right direction!
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How do I encode/decode HTML entities in Ruby?
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HTMLEntities can do it:
: jmglov@laurana; sudo gem install htmlentities
Successfully installed htmlentities-4.2.4
: jmglov@laurana; irb
irb(main):001:0> require 'htmlentities'
=> []
irb(main):002:0> HTMLEntities.new.decode "¡I'm highly annoyed...
Override body style for content in an iframe
...e, I am hiding an element with a specific class in the inner iframe.
Basically, you just append a 'style' element to the 'head' of the inner iframe.
$('iframe').load( function() {
$('iframe').contents().find("head")
.append($("<style type='text/css'> .my-class{display:none;} <...
How can I replace text with CSS?
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display: none; doesn’t work because ::after really means “inside this element, but at the end”, in case anyone was curious.
– Ry-♦
Jun 30 '14 at 22:17
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How to delete a localStorage item when the browser window/tab is closed?
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If it works, you can technically use it. But considering removeItem is provided as a member function, it seems logical to use it rather than running into potentially undefined behavior using a separate operator.
– kungphu
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Which version of Perl should I use on Windows? [closed]
...e repeatedly had with ActiveState is that my modules sometimes fail to install because I need an upgrade to a core module, but they won't allow that. Thus, everybody who doesn't use Windows can use my code, but they can't do that with ActiveState's Perl.
ActiveState also has a very dodgy build sys...