James Hoffman's SQL tutorial is a very useful and interesting tutorial with lots of links to even more SQL information.

James Hoffman的SQL指导教程(英)是一个非常有用和有趣的指导教程，它带有到更多SQL信息的大量链接。

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In this tutorial you will learn a very useful and simple technique that will help you animate a walk cycle for creatures with anywhere from 2 to 200 limbs.

在本教程你将学习一个非常有用的，简单的技术，将帮助您随时随地与动画从2到200四肢行走的动物一周期。

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