数据库信息管理系统简介外文翻译

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Introduction to database information management system

The database is stored together a collection of the relevant data, the data is structured, non-harmful or unnecessary redundancy, and for a variety of application services, data storage independent of the use of its procedures, insert new data on the database, revised, and the original data can be retrieved by a common and can be controlled manner. When a system in the structure of a number of entirely separate from the database, the system includes a "database collection".

Database management system is a manipulation and large-scale database management software is being used to set up, use and maintenance of the database. Its unified database management and control so as to ensure database security and integrity. Database management system users access data in the database, the database administrator through Database management system database maintenance work. It provides a variety of functions, allows multiple applications and users use different methods at the same time or different time to build, modify, and asked whether the database. It allows users to easily manipulate data definition and maintenance of data security and integrity, as well as the multi-user concurrency control and the restoration of the database.

Using the database can bring many benefits: such as reducing data redundancy, thus saving the data storage space; to achieve full sharing of data resources, and so on. In addition, the database technology also provides users with a very simple means to enable users to easily use the preparation of the database applications. Especially in recent years introduced micro-computer relational database management system , intuitive operation, the use of flexible, convenient programming environment to extensive (generally 16 machine, such as IBM / PC / XT, China Great Wall 0520, and other species can run software), data-processing capacity strong. Database in our country are being more and more widely used, will be a powerful tool of economic management.

The database is through the database management system (DBMS-DATA BASE

MANAGEMENT SYSTEM) software for data storage, management and use of micro-computer relational database management system is a database management system software.

Information management system is the use of data acquisition and transmission technology, computer network technology, database construction, multimedia technology, business needs, such as the establishment of a management platform, the platform constructed on the basis of pure software business management system (to meet the business needs for the purpose), achieving operational systems of data and information sharing, and based on this structure enquiries, scheduling or decision-making system.

Information system can be manual or computer-based, independent or integrated, batch or on-line. The information system is usually the various types of combination. That is, of course, it can not be independent and is integrated.

1、Independent system to meet a specific application area (for example, personnel management) design. Independent system with its own documents, which are inevitable with a certain degree of redundancy.

2、Integrated information systems through their use of the data were combined. Resource sharing system using a database to achieve integrated objectives. For example, the normal wage system requirements from the human resources and accounting systems found in the data.

3、Artificial system has been developed based on a variety of computer information systems. So far, in a computerized artificial, and still lacks design experience (or) lack of information between users and service personnel exchanges. That is to say, computer-based workflow system directly from the manual system workflow. Often, these systems are independent, and the computer just as a data processor. In the design of these systems, with little regard to their integrated to the end of intent.

4、Information systems according to a batch, on-line processing or both combination classification. In a batch system and data will be handled in batches or reports. For example, banks will be a large number of cheque code, and then the end