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PostgreSQL: Is it better to use multiple databases with one schema each, or one database with multip
After this comment to one of my question, I'm thinking if it is better using one database with X schemas or vice versa.
5...
Difference between DTO, VO, POJO, JavaBeans?
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JavaBeans
A JavaBean is a class that follows the JavaBeans conventions as defined by Sun. Wikipedia has a pretty good summary of what JavaBeans are:
JavaBeans are reusable software components for Java that can be manipulated...
SQL Server indexes - ascending or descending, what difference does it make?
When you create an index on a column or number of columns in MS SQL Server (I'm using version 2005), you can specify that the index on each column be either ascending or descending. I'm having a hard time understanding why this choice is even here. Using binary sort techniques, wouldn't a lookup be ...
The difference between fork(), vfork(), exec() and clone()
I was looking to find the difference between these four on Google and I expected there to be a huge amount of information on this, but there really wasn't any solid comparison between the four calls.
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Difference between JVM and HotSpot?
...at exactly is HotSpot and how does it relate to JVM and OpenJDK? Is it a library? What exactly does it do?
6 Answers
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App.Config Transformation for projects which are not Web Projects in Visual Studio?
For Visual Studio 2010 Web based application we have Config Transformation features by which we can maintain multiple configuration files for different environments. But the same feature is not available for App.Config files for Windows Services/WinForms or Console Application.
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In Django, how does one filter a QuerySet with dynamic field lookups?
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Python's argument expansion may be used to solve this problem:
kwargs = {
'{0}__{1}'.format('name', 'startswith'): 'A',
'{0}__{1}'.format('name', 'endswith'): 'Z'
}
Person.objects.filter(**kwargs)
This is a very common and useful Python idiom.
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What exactly are iterator, iterable, and iteration?
What is the most basic definition of "iterable", "iterator" and "iteration" in Python?
13 Answers
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Clean up a fork and restart it from the upstream
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The simplest solution would be (using 'upstream' as the remote name referencing the original repo forked):
git remote add upstream /url/to/original/repo
git fetch upstream
git checkout master
git reset --hard upstream/master
git push origin master --...
Detect Chrome extension first run / update
How can an extension find out that it is being run for the first time or has just been updated, so that the extension can perform some specific actions? (e.g. open a help page or update settings)
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