Beginner and intermediate programmers or people who have a little bit of exposure to Rails will likely benefit the most.

初级和中级程序员或只稍微了解一点Rails知识的开发人员可能受益最大。

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This tutorial is written for database administrators and database programmers whose skills and experience are at a beginning to intermediate level.

本教程面向的读者为具有初级到中级水平的数据库管理员和数据库程序员。

youdao

This tutorial is written for programmers and scripters who have a basic understanding of XML and whose skills and experience are at a beginning to intermediate level.

本教程是为那些对 XML 有一定了解、经验技巧接近中级水平的程序员和脚本作者而编写的。

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