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Why use multiple columns as primary keys (composite primary key)
...tuitively this doesn't make sense.
1234 Jobs
1234 Gates
Further Reading: The great primary-key debate or just Google meaningless primary keys or even peruse this SO question
FWIW - My 2 cents is to avoid multi-column primary keys and use a single generated id field (surrogate key) as the...
Dynamic Anonymous type in Razor causes RuntimeBinderException
...r.AnonymousObjectToHtmlAttributes I knew this absolutely had to baked in already and didn't want to reinvent the wheel with similar handrolled code.
– Chris Marisic
May 11 '11 at 21:37
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How to extract the file name from URI returned from Intent.ACTION_GET_CONTENT?
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in case when you attempt read mimeType or fileName of file from camera, firstly you have to notify MediaScanner that will convert URI of your just created file from file:// to content:// in onScanCompleted(String path, Uri uri) method stackoverflow.c...
How to remove item from list in C#?
...lement and can make queries with "where not" conditions a little easier to read:
public static IEnumerable<T> ExceptWhere<T>(this IEnumerable<T> source, Predicate<T> predicate)
{
return source.Where(x=>!predicate(x));
}
//usage in above situation
resultList = results...
How do I set the size of Emacs' window?
... Then again, I actually like this version better -- much simpler (easy to read and tweak), and suits my needs well. Both are good answers, though! +1
– lindes
Mar 5 '11 at 10:48
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Good reasons to prohibit inheritance in Java?
...n the second edition and item 15 in the first edition.) You should really read it, but I'll summarize.
The interaction of inherited classes with their parents can be surprising and unpredicatable if the ancestor wasn't designed to be inherited from.
Classes should therefore come in two kinds :
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Use of alloc init instead of new
Learning Objective-C and reading sample code, I notice that objects are usually created using this method:
8 Answers
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IE7 Z-Index Layering Issues
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after reading the "correct" solution above, I tried to formulate a solution for my considerably more complex problem than the trivial one in the question. then i threw this answer in and it worked like a charm. if the solution ab...
Determine if variable is defined in Python [duplicate]
...rewriting from scratch rather than cautiously and incrementally need to re-read Joel's 9-years-old essay joelonsoftware.com/articles/fog0000000069.html .
– Alex Martelli
Oct 20 '09 at 14:51
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Error installing mysql2: Failed to build gem native extension
.../downloads/installer/
--- for mySQL installation ---
If you dont already have these two files installed you might need them to get your MySQL going
vcredist_x86.exe -> http://www.microsoft.com/download/en/details.aspx?id=5555
dotNetFx40_Full_x86_x64.exe -> http://www.microsoft.com/...