Data Control Language

This paper introduces database-accessing methods and their concrete operating procedures by using three tools of database control, visualized data manager and data access object in Visual Basic programming language.

介绍了在VISUAL BASIC程序设计语言中使用数据控制、可视化数据管理器和数据访问对象等3种工具访问数据库的方法及其具体操作步骤。

The system adopts Microsoft Visual C++ 6.0 program language and OpenGL three-dimension graphics database as the tools, apply the face-object technique, realize that the point cloud data change into numerial-control code, finally, emulate the machining process of the shoe last.

本系统应用Microsoft visual C++6.0编程语言和OpenGL三维图形库，采用面向对象方法，实现了用点云数据计算生成可实用的数控NC代码，并对加工过程进行仿真。

The language features the complex engineering object definition and manipulation, multi-version data manage-ment, local database definition, generation and manipulation for supporting long term engineering application transactions, the integrity control localization, and schema modification.

面向复杂工程对象的定义和操作，多版本数据的管理，定义、生成和操作局部库以支持工程应用长事务、完整性控制的局部化和模式的修改，是COHORL的主要功能。

The EcmaScript component offers only the core language features& the primitive data types, expression evaluation, flow control, etc.

EcmaScript组件只提供核心语言功能&原始数据类型、表达式赋值和流量控制等等。

By pressing one or two keys on the IBM PC keyboard, it is convenient to control or acquire certain distributed data, which can be then processed dy IBM PC high-level language.

通过按动IBM PC键盘上1或2个键就能方便地控制或获取某些分散的数据，然后用IBM PC的高级语言加以处理。