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计算机专业英语论文 范文模板

时间:2015-08-07 19:19来源:www.ukthesis.org 作者:英国论文网 点击联系客服: 客服:Damien
开放式数据库连接和Java数据库连接,基本上是与客户端或应用程序的连接,在计算机的服务器或数据库中运行。连接的功能是发送和接收用结构化查询语言(SQL)编写的请求命令。一般来说,ODBC是操作系统的一部分,代表接口或称为应用程序编程接口(API),API是在电脑屏幕上显示,目的是与数据库管理服务器(DBMS)进行通信,因而也被称为服务器。加载一个特定驱动程序后,加上应用程序在多台电脑运行,便可与单个数据库通信。更深一步的细节描写以下内容会给出陈述。
 
在这个技术时代,有很多数据库存取中间件成为客户端应用程序和数据库服务器之间的连接。有许多类型的连接:ODBC、JDBC和连接字符串。连接是用于发送与接收从API到数据库服务器的请求数据,已被客户端要求且翻译成可识别使用SQL命令的语言。将SQL代码嵌入到软件,使它能与数据库通信,这一想法是在1980年代引入的。数据库没有为SQL查询提供内部存储,可以由外部程序调用。嵌入式SQL介绍了数据库特定的扩展,像C / c++这样的高级语言,目的是为了使应用程序查询和操纵数据库的内容。尽管这个方法已经使用了一段时间,但还会出现许多检查类型的问题,导致数据库模式和数据库中使用的软件,低效率运行和进化缓慢。
 
Open Database Connectivity and Java Database Connectivity are basically a connection from client or application running on the computer to the server or database. The function of connection is to send and receive request command that written in Structured Query Language (SQL). Generally, ODBC is a part of operating system representing the interface or called Application Programming Interface (API) which display on the computer screen for communication purpose with the Database Management Server (DBMS) also called a server. Applications that running on several computers can communicate with a single database after loading a particular driver. Further detail will be explained.
 
In this technology era, there are numbers of database access middleware which become a connection between applications on client side and database server. There are many types of connection; ODBC, JDBC and connection string. The connection is used for sending request data from API to the database server and also receiving data which have been requested by the client and translate to the language that can be understand using SQL command. The idea of embedding SQL code into software to allow it to communicate with databases was introduced in 1980s. Databases did not provide internal storage for SQL queries that could be invoked by external programs. Embedded SQL was introduced as database specific extension to high-level languages like C/C++ in order to allow programs to query and manipulate the content of databases. Although this method has been used for some time, it creates many problems with type checking that leads to inefficient and slow evolution of database schemas and software that uses the databases.(责任编辑:huiyinad)


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