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How to drop unique in MySQL?

...swered Oct 14 '09 at 8:12 Wael DalloulWael Dalloul 19.4k1111 gold badges4444 silver badges5555 bronze badges ...
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Should Gemfile.lock be included in .gitignore?

...gem, Gemfile.lock should be in your repository. It's used as a snapshot of all your required gems and their dependencies. This way bundler doesn't have to recalculate all the gem dependencies each time you deploy, etc. From cowboycoded's comment below: If you are working on a gem, then DO NOT c...
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How can I search for a multiline pattern in a file?

I needed to find all the files that contained a specific string pattern. The first solution that comes to mind is using find piped with xargs grep : ...
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Does Python optimize tail recursion?

...tracebacks: Tail Recursion Elimination (2009-04-22) Final Words on Tail Calls (2009-04-27) You can manually eliminate the recursion with a transformation like this: >>> def trisum(n, csum): ... while True: # Change recursion to a while loop ... if n == 0:...
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Is there an IDictionary implementation that, on missing key, returns the default value instead of th

... Indeed, that won't be efficient at all. You could always write an extension method: public static TValue GetValueOrDefault<TKey,TValue> (this IDictionary<TKey, TValue> dictionary, TKey key) { TValue ret; // Ignore return value dic...
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Insert into … values ( SELECT … FROM … )

... is it Necessary that we insert into all columns of the table – maheshmnj Feb 24 at 7:22 1 ...
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maximum value of int

...imum value. Same goes for the C macros/constants. – dalle Dec 31 '09 at 11:29 4 in C99 you can al...
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C++ display stack trace on exception

...re details. On MSVC then you can use the StackWalker library that handles all of the underlying API calls needed for Windows. You'll have to figure out the best way to integrate this functionality into your app, but the amount of code you need to write should be minimal. ...
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Should methods that throw RuntimeException indicate it in method signature?

...icitly handled. Declaring it in the javadoc is a better approach since it allows someone to handle it if they think it is necessary, but knowing they can ignore it if they want. This makes the separation between checked and unchecked clear. ...
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mysqldump - Export structure only without autoincrement

.../g' > <filename>.sql (this only works if you have GUI Tools installed: mysqldump --skip-auto-increment) New UPDATE thanks to comments. The \b is useless and sometimes will break the command. See this SO topic for explanations. So the optimized answer would be : mysqldump -u root -p -h ...