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How to update column with null value

I am using mysql and need to update a column with a null value. I have tried this many different ways and the best I have gotten is an empty string. ...
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Windows: How to specify multiline command on command prompt?

how do we extend a command to next line? 4 Answers 4 ...
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Error in plot.new() : figure margins too large in R

...barely too small. Try zooming your "Files, Plots, Packages, Help, Viewer" and see if it helps! share | improve this answer | follow | ...
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How to use a variable for the database name in T-SQL?

I use the database name in several places in my script, and I want to be able to quickly change it, so I'm looking for something like this: ...
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Can multiple different HTML elements have the same ID if they're different elements?

..., where the IDs under the parent would be unique. eg $('div#car span#size) and $('div#truck span#size'). – BJury Jul 2 '14 at 11:33 ...
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How to find files that match a wildcard string in Java?

... Try FileUtils from Apache commons-io (listFiles and iterateFiles methods): File dir = new File("."); FileFilter fileFilter = new WildcardFileFilter("sample*.java"); File[] files = dir.listFiles(fileFilter); for (int i = 0; i < files.length; i++) { System.out.println...
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What are some better ways to avoid the do-while(0); hack in C++?

...is considered acceptable practice to isolate these decisions in a function and use returns instead of breaks. While all these checks correspond to the same level of abstraction as of the function, it is quite logical approach. For example: void foo(...) { if (!condition) { return; }...
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How do I create a simple 'Hello World' module in Magento?

... First and foremost, I highly recommend you buy the PDF/E-Book from PHP Architect. It's US$20, but is the only straightforward "Here's how Magento works" resource I've been able to find. I've also started writing Magento tutorials a...
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HTML5 doctype putting IE9 into quirks mode?

I'm trying to get IE9 to load my page with IE9 standards... 5 Answers 5 ...
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How to return multiple lines JSX in another return statement in React?

...one becomes: {[1,2,3].map(function (n) { return React.DOM.p(...); })} And the second one: {[1,2,3].map(function (n) { return ( React.DOM.h3(...) React.DOM.p(...) ) })} It should now be clear that the second snippet doesn't really make sense (you can't return more than one value i...