非常好的oracle开发学习手册．plsql的内容全面详细，实例完整实用，工作时我一般复制出来改下就行．上司给我的宝典．-Oracle develop very good study manual. full details of the contents of plsql, full of practical examples, work out I tend to copy the line under the change. Boss gave me the book.

图书馆管理系统，用来管理图书信息等内容，比较实用-Library management system, used to manage the book information and other content, more practical

考勤系统，用来记录考勤信息等东西，比较实用-Attendance system, used to record attendance information, and other things, more practical

学生信息管理系统，描述的是管理系统的应用在实际应用中的作用-Student information management system, is described in the role of the management system used in the practical application