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How to do a regular expression replace in MySQL?

... expression specified by the pattern pat with the replacement string repl, and returns the resulting string. If expr, pat, or repl is NULL, the return value is NULL. and Regular expression support: Previously, MySQL used the Henry Spencer regular expression library to support regular expression op...
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Android. Fragment getActivity() sometimes returns null

...ole error reports sometimes I see reports with NPE issue. I do not understand what is wrong with my code. On emulator and my device application works good without forcecloses, however some users get NullPointerException in fragment class when the getActivity() method is called. ...
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Is there a “previous sibling” selector?

...g the element comes after this one, but not necessarily immediately after) and is a CSS3 selector. + is for next sibling and is CSS2.1. See Adjacent sibling combinator from Selectors Level 3 and 5.7 Adjacent sibling selectors from Cascading Style Sheets Level 2 Revision 1 (CSS 2.1) Specification. ...
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Which is more efficient, a for-each loop, or an iterator?

... If you are just wandering over the collection to read all of the values, then there is no difference between using an iterator or the new for loop syntax, as the new syntax just uses the iterator underwater. If however, you mean by loop the ...
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Adding VirtualHost fails: Access Forbidden Error 403 (XAMPP) (Windows 7)

... Okay: This is what I did now and it's solved: My httpd-vhosts.conf looks like this now: <VirtualHost dropbox.local:80> DocumentRoot "E:/Documenten/Dropbox/Dropbox/dummy-htdocs" ServerName dropbox.local ErrorLog "logs/dropbox.local-err...
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When to use virtual destructors?

I have a solid understanding of most OOP theory but the one thing that confuses me a lot is virtual destructors. 17 Answe...
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Set a default parameter value for a JavaScript function

...ments which I set a default on, which get used if the value isn't defined (and ignored if the value is passed). In Ruby you can do it like this: ...
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How do I find the time difference between two datetime objects in python?

...nly holds the difference. In the example above it is 0 minutes, 8 seconds and 562000 microseconds. share | improve this answer | follow | ...
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Validate phone number with JavaScript

I found this code in some website, and it works perfectly. It validates that the phone number is in one of these formats: (123) 456-7890 or 123-456-7890 ...
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CSS to stop text wrapping under image

... Since this question is gaining lots of views and this was the accepted answer, I felt the need to add the following disclaimer: This answer was specific to the OP's question (Which had the width set in the examples). While it works, it requires you to have a width ...