开始之前，有几点注意事项：第一，要读懂本文，您应当掌握关系型数据库、JDBC和结构化查询语言(SQL)的基础知识。
Before you get started, a few notes: First, to follow along with this article, you should have a basic knowledge of relational databases, JDBC, and Structured Query Language (SQL).
SQL结构化查询语言基础上建立的数据库系统使得用户能够对数据库进行简单的操作和管理。通过数据库技术可以让用户更好地对企业进行管理。
The database system based on the standard query language — SQL, makes user can easily manage and operate on the database.Users can manage the corporation better because of the database technology.
在分词技术、索引技术、结构化查询语言技术的基础上，提出了一个基于XML文档数据库的信息检索系统，这一系统模型主要由分词模块、索引模块及查询模块组成。
This paper puts forward an information retrieval system based on XML documents database on the foundation of segmentation technology, index technology and structured query language technology.
给出了中介关系数据模型，在此基础上构造了两类不同的中介关系数据库查询语言：中介关系演算和中介关系代数。
Based on this model, this paper constructs two different kinds of medium relational database query languages: medium relational calculus and medium relational algebra.
第二，这意味着我们在数据库设计的基础上，应用设计/编程语言的选择，我们极力避免。
Second, it means we're doing database design based on the application design/programming language choice, which we strongly try to avoid.
计算机基于语言基础融合了强大的数据库开发能力是一种非常好的数据开发工具。
Computer based on language-based integration of a powerful database development capability is a very good data development tools.
而无结构数据库最终选择了使用XML这种标记语言作为基础，并创立也这样一种全新的数据库。
Unstructed database finally choice XML which is a mark language. With XML, developer set up a new database.
本文在所建立的数据库基础之上应用面向对象的开发语言进行了数据库的应用开发，对我国的空中交通流量进行了模拟分析。
Based on the built air transportation information database system, the writer has developed an application to analysis the air traffic flow of our country at the end of the thesis.
本文在所建立的数据库基础之上应用面向对象的开发语言进行了数据库的应用开发，对我国的空中交通流量进行了模拟分析。
Based on the built air transportation information database system, the writer has developed an application to analysis the air traffic flow of our country at the end of the thesis.
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