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Unpivot with column name

I have a table StudentMarks with columns Name, Maths, Science, English . Data is like 4 Answers ...
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Unique constraint that allows empty values in MySQL

I have a field that stores product codes. The codes are unique, but some products simply doesn't have a code. I can't invent codes because those are providers codes. ...
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Eclipse: Can you format code on save?

In Eclipse, under Windows -> Preference -> Java -> Code Style , you can define code templates for comments and code, and you can setup a code formatter. ...
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Insert the carriage return character in vim

I'm editing a network protocol frame stored a file in Unix ( \n newlines). I need to insert the carriage return character ( U+000D aka \r ). When I try to paste it from the clipboard ( "+p ) or type it using Ctrl + Shift + u - 000d , the linefeed is inserted ( U+000A ). ...
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Django fix Admin plural

How do I change some models name from "Categorys" to "Categories" on admin site in the new dev django version? In the old version (whithout admin sites and admin models) you could just do this; http://www.the-dig.com/blog/post/customize-plural-name-django-admin/ ...
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Intellij IDEA generate for-each/for keyboard shortcut

Is there a keyboard shortcut generating a foreach and also for loop? 7 Answers 7 ...
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How can I append a string to an existing field in MySQL?

I want to update the code on all my record to what they currently are plus _standard any ideas? 2 Answers ...
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How do I log a Python error with debug information?

I am printing Python exception messages to a log file with logging.error : 12 Answers ...
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How do you receive a url parameter with a spring controller mapping

This issue seems trivial, but I can't get it to work properly. I'm calling my Spring controller mapping with jquery ajax. The value for someAttr is always empty string regardless of the value in the url. Please help me determine why. ...
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How to redirect single url in nginx?

I'm in the process of reorganizing url structure. I need to setup redirect rules for specific urls - I'm using NGINX. 3 ...