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How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
A very frequently asked question here is how to do an upsert, which is what MySQL calls INSERT ... ON DUPLICATE UPDATE and the standard supports as part of the MERGE operation.
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Why is IoC / DI not common in Python?
In Java IoC / DI is a very common practice which is extensively used in web applications, nearly all available frameworks and Java EE. On the other hand, there are also lots of big Python web applications, but beside of Zope (which I've heard should be really horrible to code) IoC doesn't seem t...
design a stack such that getMinimum( ) should be O(1)
This is one of an interview question. You need to design a stack which holds an integer value such that getMinimum() function should return the minimum element in the stack.
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MySQL ON vs USING?
In a MySQL JOIN , what is the difference between ON and USING() ? As far as I can tell, USING() is just more convenient syntax, whereas ON allows a little more flexibility when the column names are not identical. However, that difference is so minor, you'd think they'd just do away with USI...
Mythical man month 10 lines per developer day - how close on large projects? [closed]
Everybody always says that they can beat the "10 lines per developer per day" from the "Mythical Man Month", and starting a project, I can usually get a couple hundred lines in in a day.
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How to calculate the difference between two dates using PHP?
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Haskell: How is pronounced? [closed]
How do you pronounce these functions in the Applicative typeclass:
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What exactly are iterator, iterable, and iteration?
What is the most basic definition of "iterable", "iterator" and "iteration" in Python?
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Is PowerShell ready to replace my Cygwin shell on Windows? [closed]
I'm debating whether I should learn PowerShell, or just stick with Cygwin /Perl scripts/Unix shell scripts, etc.
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X-Frame-Options Allow-From multiple domains
I have an ASP.NET 4.0 IIS7.5 site which I need secured using the X-Frame-Options header.
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