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Calculate the median of a billion numbers
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@WULF An excellent question. It's key to the algorithm, and step 1 addresses it. A sampling of the numbers to establish a distribution is the best I've come up with.
– DJClayworth
Aug 2 at 16:25
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What's the best way of structuring data on firebase?
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UPDATE: There is now a doc on structuring data. Also, see this excellent post on NoSQL data structures.
The main issue with hierarchical data, as opposed to RDBMS, is that it's tempting to nest data because we can. Generally, you want to normalize data to some extent (just as you would ...
Choosing a Java Web Framework now? [closed]
...m those missteps. I suppose if you're already an expert in these they'd be excellent choices, but I'd be concerned for O&M programmers who have to take over after the experts leave the project. Nobody's really learning this stuff any more IMO.
– Manius
Aug ...
How to get users to read error messages?
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That is an excellent question worthy of a +1 from me. The question despite being simple, covers many aspects of the nature of end-users. It boils down to a number of factors here which would benefit you and the software itself, and of c...
When to call activity context OR application context?
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@Sever: I cover this in my answer. Dave Smith also has an excellent blog post covering contexts: doubleencore.com/2013/06/context His summary paragraph: "In most cases, use the Context directly available to you from the enclosing component you’re working within. You can safely ho...
Simple way to transpose columns and rows in SQL?
...de more policy numbers.
Horizontal expansion
Unlike the PIVOT, the cursor excels in this area as it is able to expand to include newly added document, without altering the script.
Performance breakdown
The major limitation of transposing rows into columns using CURSOR is a disadvantage that is lin...
What is Castle Windsor, and why should I care?
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Mark Seemann wrote and excellent book on DI (Dependency Injection) which is a subset of IOC. He also compares a number of containers. I cannot recommend this book enough. The book's name is: "Dependency Injection in .Net" https://www.manning.com/bo...
Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
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Excellent, and underappreciated, answer. It is not at all obvious that the two definitions of TRUE will differ under C++.
– user4815162342
Jun 9 '13 at 20:35
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Why define an anonymous function and pass it jQuery as the argument?
I'm looking through the excellent peepcode demo code from the backbone.js screencasts. In it, the backbone code is all enclosed in an anonymous function that is passed the jQuery object:
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When is it better to use String.Format vs string concatenation?
...iece of code that is parsing an index value to determine a cell input into Excel. It's got me thinking...
14 Answers
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