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DatabaseError: current transaction is aborted, commands ignored until end of transaction block?

... This is what postgres does when a query produces an error and you try to run another query without first rolling back the transaction. (You might think of it as a safety feature, to keep you from corrupting your data.) To fix...
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How to find out which package version is loaded in R?

... You can use sessionInfo() to accomplish that. > sessionInfo() R version 2.15.0 (2012-03-30) Platform: x86_64-pc-linux-gnu (64-bit) locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 [5]...
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Web Application Problems (web.config errors) HTTP 500.19 with IIS7.5 and ASP.NET v2

This is driving the whole team crazy. There must be some simple mis-configured part of IIS or our Web Server, but every time we try to run out ASP.NET Web Application on IIS 7.5 we get the following error... ...
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How to convert an int to string in C?

... EDIT: As pointed out in the comment, itoa() is not a standard, so better use sprintf() approach suggested in the rivaling answer! You can use itoa() function to convert your integer value to a string. Here is an example: int num = 321; char snum[5]; // convert 12...
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“Connection for controluser as defined in your configuration failed” with phpMyAdmin in XAMPP

...word, and grant the new user full control over the phpmyadmin database. It is recommended that this user does not have access to anything other than this database. Go to the phpMyAdmin installation directory, where you should find a sub-directory called sql. In sql you will find a file called create...
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How do I find out my python path using python?

How do I find out which directories are listed in my system’s PYTHONPATH variable, from within a Python script (or the interactive shell)? ...
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how to get request path with express req object

...sing express + node.js and I have a req object, the request in the browser is /account but when I log req.path I get '/' --- not '/account'. ...
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Maintain the aspect ratio of a div with CSS

...e a wrapper <div> with a percentage value for padding-bottom, like this: .demoWrapper { padding: 10px; background: white; box-sizing: border-box; resize: horizontal; border: 1px dashed; overflow: auto; max-width: 100%; height: calc(100vh - 16px); } div { width: 100%; p...
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HorizontalScrollView within ScrollView Touch Handling

...ave a ScrollView that surrounds my entire layout so that the entire screen is scrollable. The first element I have in this ScrollView is a HorizontalScrollView block that has features that can be scrolled through horizontally. I've added an ontouchlistener to the horizontalscrollview to handle tou...
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What is Autoloading; How do you use spl_autoload, __autoload and spl_autoload_register?

... spl_autoload_register() allows you to register multiple functions (or static methods from your own Autoload class) that PHP will put into a stack/queue and call sequentially when a "new Class" is declared. So for example: spl_autoload_reg...