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How to create a directory using nerdtree
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answered May 22 '10 at 21:59
housetierhousetier
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Rails - Validate Presence Of Association?
... B. I have a business requirement that an insert into A requires at least 1 associated record to B. Is there a method I can call to make sure this is true, or do I need to write a custom validation?
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How can I fix the Microsoft Visual Studio error: “package did not load correctly”?
I installed Visual Studio 2012 and DevExpress 13.1. As Visual Studio started, it generated an error shown by this attached image,
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adb update a non-market apk?
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answered Mar 10 '10 at 8:17
Vidar VestnesVidar Vestnes
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Python Write bytes to file
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answered Aug 23 '12 at 13:22
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
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How to calculate the difference between two dates using PHP?
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SQL - many-to-many table primary key
...e no real advantage to having a surrogate key. Having a primary key on (col1,col2) is guaranteed unique (assuming your col1 and col2 values in the referenced tables are unique) and a separate index on (col2,col1) will catch those cases where the opposite order would execute faster. The surrogate is ...
Generate random numbers using C++11 random library
...m trying to figure out a way of generating random numbers using the new C++11 <random> library. I have tried it with this code:
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Handlebars.js Else If
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edited Dec 14 '15 at 16:49
answered Jun 4 '12 at 15:40
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