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What's faster, SELECT DISTINCT or GROUP BY in MySQL?
...e databases implement DISTINCT under the hood).
If one of them is faster, it's going to be DISTINCT. This is because, although the two are the same, a query optimizer would have to catch the fact that your GROUP BY is not taking advantage of any group members, just their keys. DISTINCT makes this ...
How to remove “index.php” in codeigniter's path
How do I remove the "index.php" sticking out in every path in codeigniter somewhere in the center?
I want clean non index.php-fied URLs ?
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Regex for password must contain at least eight characters, at least one number and both lower and up
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edited Sep 14 '18 at 10:41
Wiktor Stribiżew
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Deploying my application at the root in Tomcat
...irectory from tomcat and rename your war file to ROOT.war before deploying it.
Deploy your war as (from your example) war_name.war and configure the context root in conf/server.xml to use your war file :
<Context path="" docBase="war_name" debug="0" reloadable="true"></Context>
The f...
How to embed a video into GitHub README.md?
Is it possible to embed a flash video into README.md on GitHub? It isn't showing up: https://github.com/mattdipasquale/PicSciP
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random.seed(): What does it do?
I am a bit confused on what random.seed() does in Python. For example, why does the below trials do what they do (consistently)?
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What is the difference between And and AndAlso in VB.NET?
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edited Apr 21 '15 at 10:10
Karim AG
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When are you truly forced to use UUID as part of the design?
I don't really see the point of UUID . I know the probability of a collision is effectively nil , but effectively nil is not even close to impossible.
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What is the (best) way to manage permissions for Docker shared volumes?
I've been playing around with Docker for a while and keep on finding the same issue when dealing with persistent data.
13 A...
What's the opposite of 'make install', i.e. how do you uninstall a library in Linux?
... any intermediate or output files from your source / build tree. However, it only affects the source / build tree; it does not touch the rest of the filesystem and so will not remove previously installed software.
If you're lucky, running make uninstall will work. It's up to the library's authors...