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Is there any difference between GROUP BY and DISTINCT
...nce (in SQL Server, at least). Both queries use the same execution plan.
http://sqlmag.com/database-performance-tuning/distinct-vs-group
Maybe there is a difference, if there are sub-queries involved:
http://blog.sqlauthority.com/2007/03/29/sql-server-difference-between-distinct-and-group-by-dis...
How to loop through a HashMap in JSP?
... getValue() methods.
Here's a basic example:
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<c:forEach items="${map}" var="entry">
Key = ${entry.key}, value = ${entry.value}<br>
</c:forEach>
Thus your particular issue can be solved as follows:
<%@ t...
Best Way to read rss feed in .net Using C#
...d System.ServiceModel in references
Using SyndicationFeed:
string url = "http://fooblog.com/feed";
XmlReader reader = XmlReader.Create(url);
SyndicationFeed feed = SyndicationFeed.Load(reader);
reader.Close();
foreach (SyndicationItem item in feed.Items)
{
String subject = item.Title.Text; ...
Best way to hide a window from the Alt-Tab program switcher?
...st, the XAML part:
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Height="300" Width="300"
ShowInTaskbar="False" WindowStyle="None"
Loaded="Window_Loaded" >
...
What does $(function() {} ); do?
...is running before the DOM finishes loading.
Everything is explained here: http://docs.jquery.com/Tutorials:Introducing_$(document).ready()
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Does Flask support regular expressions in its URL routing?
...(debug=True, host='0.0.0.0', port=5000)
this URL should return with 200: http://localhost:5000/abc0-foo/
this URL should will return with 404: http://localhost:5000/abcd-foo/
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Hex representation of a color with alpha channel?
...
It looks like there is no hex alpha format: http://www.w3.org/TR/css3-color/
Anyway, if you use a CSS preprocessor like SASS then you can pass an hex to rgba:
background:
rgba(#000, 0.5);
And the preprocessor just converts the hex code to rgb automatically.
...
NOW() function in PHP
...
date('Y-m-d H:i:s')
Look here for more details: http://pl.php.net/manual/en/function.date.php
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ASP.NET Web API - PUT & DELETE Verbs Not Allowed - IIS 8
... API convention is that your method name should be the same as the invoked HTTP verb. For example if you're sending an HTTP delete request your method, by default, should be named Delete.
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Get the name of the currently executing method
...
From http://snippets.dzone.com/posts/show/2785:
module Kernel
private
def this_method_name
caller[0] =~ /`([^']*)'/ and $1
end
end
class Foo
def test_method
this_method_name
end
end
puts Foo.new.test_metho...