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ERROR 1396 (HY000): Operation CREATE USER failed for 'jack'@'localhost'

I seem to be unable to re-create a simple user I've deleted, even as root in MySQL. 24 Answers ...
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How do I check if a property exists on a dynamic anonymous type in c#?

...ype object that I receive as a dynamic from a method I would like to check in a property exists on that object. 10 Answers ...
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Why doesn't TFS get latest get the latest?

... TFS redefined what "Get Latest" does. In TFS terms, Get Latest means get the latest version of the files, but ignore the ones that the server thinks is already in your workspace. Which to me and just about everyone else on the plane...
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Floating point vs integer calculations on modern hardware

I am doing some performance critical work in C++, and we are currently using integer calculations for problems that are inherently floating point because "its faster". This causes a whole lot of annoying problems and adds a lot of annoying code. ...
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How can I post data as form data instead of a request payload?

In the code below, the AngularJS $http method calls the URL, and submits the xsrf object as a "Request Payload" (as described in the Chrome debugger network tab). The jQuery $.ajax method does the same call, but submits xsrf as "Form Data". ...
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Should I use encoding declaration in Python 3?

Python 3 uses UTF-8 encoding for source-code files by default. Should I still use the encoding declaration at the beginning of every source file? Like # -*- coding: utf-8 -*- ...
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Is it possible for intellij to organize imports the same way as in Eclipse?

I'm working on a project where all the team members are using Eclipse and I'm the only IDEA user. This creates a lot of noise from imports rearrangements. The order in which eclipse imports is: Java, Javax, Org, Com, everything else in alphabetical order. Is it possible to configure IDEA to follow t...
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How can I keep my fork in sync without adding a separate remote?

... Click on Compare: You will get the notification: There isn't anything to compare. someone:master is up to date with all commits from me:master. Try switching the base for your comparison. Click on switching the base on this page: Then you get to see all the commits made to someone/fo...
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Eclipse: Referencing log4j.dtd in log4j.xml

I've been using log4j for quite a while now and I usually use this at the top of the log4j.xml (probably just like many others and according to Google this is the way to do it): ...
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Preloading images with jQuery

I'm looking for a quick and easy way to preload images with JavaScript. I'm using jQuery if that's important. 20 Answers ...