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A migration to add unique constraint to a combination of columns
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251
add_index :people, [:firstname, :lastname, :dob], :unique => true
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Import existing source code to GitHub
...uruser/somename.git
If your local GIT repo is already set up, skips steps 2 and 3
Locally, at the root directory of your source, git init
2a. If you initialize the repo with a .gitignore and a README.md you should do a git pull {url from step 1} to ensure you don't commit files to source that yo...
How do I resolve git saying “Commit your changes or stash them before you can merge”?
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1382
You can't merge with local modifications. Git protects you from losing potentially important cha...
Sqlite or MySql? How to decide? [closed]
...f memory usage, for example, to buffer parts of your 1Tb database in your 32G of memory.
You need to use mysql or some other server-based RDBMS.
Note that MySQL is not the only choice and there are plenty of others which might be better for new applications (for example pgSQL).
Sqlite is a very,...
Fastest way to check if a value exists in a list
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edited Sep 27 '11 at 15:57
answered Sep 27 '11 at 15:25
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Disable webkit's spin buttons on input type=“number”?
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Rolwin CrastaRolwin Crasta
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XPath to find elements that does not have an id or class
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22
If you're looking for an element that has class a but doesn't have class b, you can do the foll...
how to change directory using Windows command line
I'm using cmd.exe (C:\WINDOWS\System32\cmd.exe) and I have to change my current directory to "D:\temp" i.e. temp folder in the D drive.
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How can I save an image to the camera roll?
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240
You use the UIImageWriteToSavedPhotosAlbum() function.
//Let's say the image you want to save...
w3wp process not found
I use Visual Studio 2010 to debug a asp.net MVC project in my local machine. The steps are:
16 Answers
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