摘要
虚拟机定义了一套规范,在遵守规范的条件下,可以保证任一程序设计语言在任一硬件平台上的实现,具有平台的独立性。介绍了虚拟机技术如何保证微型数据库引擎的平台独立性,阐述了所采用的虚拟机的体系结构,分析了解析SQL语言的虚拟机代码,并提出了提高系统中虚拟机效率的2条措施。
Virtual machine defines a suit of criteria. In the condition of abiding by criteria, virtual machine can he implemented by any programming language on any hardware platform. It ensures independence of the platform. This article introduces how virtual machine technology can ensure miniature database system＇s independence of platform, expounds structure of virtual machine, analyzes virtual machine code of SQL language in detail. Finally, it points out two ways of improving virtual machine＇s efficiency in the system.
出处
《交通与计算机》
2006年第2期114-117,共4页
Computer and Communications
关键词
虚拟机技术
SQL语言
微型数据库引擎
virtual machine technology
SQL language
miniature database engine
