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.NET - Dictionary locking vs. ConcurrentDictionary

...a clerk is currently building the pyramid, all hell would break loose. Or, what if two customers reaches for the same item at the same time, who wins? Will there be a fight? This is a non-threadsafe-collection. There's plenty of ways to avoid problems, but they all require some kind of locking, or r...
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Django - what is the difference between render(), render_to_response() and direct_to_template()?

Whats the difference (in language a python/django noob can understand) in a view between render() , render_to_response() and direct_to_template() ? ...
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What is the best place for storing uploaded images, SQL database or disk file system? [closed]

... please drop a .NET resource for that in the comment or so). I wonder now what the best place for storing uploaded images is. ...
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What is a plain English explanation of “Big O” notation?

...their relative ordering). This assumes that comparison is expensive. But what if the comparison is cheap but swapping is expensive? It changes the comparison; and complexity: if it takes me one second to sort 10,000 elements, how long will it take me to sort one million? Complexity in this insta...
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Meaning of @classmethod and @staticmethod for beginner? [duplicate]

...have to do this in different places in the source code of our project. So what we must do here is: Parse a string to receive day, month and year as three integer variables or a 3-item tuple consisting of that variable. Instantiate Date by passing those values to the initialization call. This wi...
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Positive Number to Negative Number in JavaScript?

... What's wrong with i * -1? Also, I'm not sure this answers the actual question. – Andrew Barber Sep 28 '12 at 6:56 ...
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What is PAGEIOLATCH_SH wait type in SQL Server?

... Can you suggest some resources for learning the understanding you have of what is disk intensive, what requires a full index scan, what requires a sort etc – Greg B Feb 3 '11 at 11:42 ...
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What is the difference between Nexus and Maven?

What is the difference between Nexus and Maven ? 3 Answers 3 ...
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SQL update fields of one table from fields of another one

... @YasirAzgar the b.id = 1 is to limit what rows in b get updated. Otherwise we would update every row in the table. Occasionally, that might be what you want. But the original question was to update a specific row in b. – Scott Bailey ...
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Understanding Apache's access log

What do each of the things in this line from my access log mean? 3 Answers 3 ...