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Entity Attribute Value Database vs. strict Relational Model Ecommerce
...ternal models are wacky at best, like someone put the schema into a boggle game, sealed that and put it in a paint shacker...
Real world: I'm working on a midware fulfilment app and here are one the queries to get address information.
CREATE OR REPLACE VIEW sales_flat_addresses AS
SELECT sales_ord...
How can I swap positions of two open files (in splits) in vim?
... is a bit of a shuffle. With 3 windows, it's a bit like one of those 'tile game' puzzles. I don't recommand trying this if you have 4 or more windows - you'd be better off closing them then opening them again in the desired positions.
I made a screencast demonstrating how to work with split window...
What is unit testing? [closed]
...internal tester finds it before you ship, but fixing code that late in the game is expensive. And if no internal tester finds it...well, that can get very expensive indeed.
The solution is unit tests. They'll catch problems when you write code - which is fine - but you could have done that by hand....
Setting up FTP on Amazon Cloud Server [closed]
... denied.
root
bin
daemon
adm
lp
sync
shutdown
halt
mail
news
uucp
operator
games
nobody
This is basically saying, "Don't allow these users FTP access." vsftpd will allow FTP access to any user not on this list.
So, in order to create a new FTP account, you may need to create a new user on your s...
Understanding prototypal inheritance in JavaScript
... an article about the prototypes concept in JavaScript. It's written for a game engine that uses JavaScript, but it's the same JavaScript engine used by Firefox, so it should all be relevant. Hope this helps.
share
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Seeding the random number generator in Javascript
... don't care about randomness quality (what is random anyway?). Great for a game jam or a demo or something. LCGs suffer from seed correlations, so it is best to discard the first result of an LCG. And if you insist on using an LCG, adding an increment value may improve results, but it is probably an...
Is using Random and OrderBy a good shuffle algorithm?
...g - the yield is basically an empty loop.
This algorithm is used a lot in games, where the first three items are picked, and the others will only be needed later if at all. My suggestion is to yield the numbers as soon as they are swapped. This will reduce the start-up cost, while keeping the itera...
Understanding Canvas and Surface concepts
...en (although that is the common usage, to render graphics on a full screen game).
– sksamuel
Jan 2 '11 at 3:43
1
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构建高并发高可用的电商平台架构实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...压缩，缓存的内存消耗）；下面基于几种常用的负载均衡软件做个介绍。
LVS，工作在4层，Linux实现的高性能高并发、可伸缩性、可靠的的负载均衡器，支持多种转发方式(NAT、DR、IP Tunneling)，其中DR模式支持通过广域网进行负载...
Unknown file type MIME?
...ation/octet-stream as a default if we do not want clients playing guessing games with content examination.
– Jpnh
Mar 19 '15 at 20:30
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