数据库 专业英语翻译(13)

数据库专业英语翻译

user can use all sorts of ways to use the database through interfaces, and provide data sharing.

(2) reduce data redundancy.

Compared with the file system, because the database to achieve data sharing so as to avoid the user respective establish application documentation. Reduce a lot of repeating data, reduce the data redundancy, maintain the consistency of the data.

(3) data of independence.

Data independence including database database of logical structure and application independent, also including data physical structure change does not affect the data of the logical structure.

(4) data realize central control.

File management mode, data in a decentralized state, different user or same users in different treatment had no relation between the documents. Using the database of data can be concentrated control and management, and through the data model of data organization and said the relation between data.

(5) the data consistency and maintainability, to ensure the safety and reliability of the data.

Mainly includes: (1) the safety control: to prevent data loss, error updating and excessive use; (2) the integrity control: ensure data accuracy, effectiveness and compatibility; (3) the concurrent control: make in the same time period to allow data realization muli-access, and can prevent users of abnormal interaction between; (4) fault finding and recovery: the database management system provides a set of method, can isolate faults and repair fault, thereby preventing data breaches

(6) fault recovery.

The database management system provides a set of method, can isolate faults and repair fault, thereby preventing data breaches. Database system can restore database system is running as soon as possible, is probably the fault occurred in the physical or logical error. For instance, in system caused by incorrect operation data error, etc.

Database classification

1. The MaiJie openPlant real-time database

Real-time database system is a new field in database theory expansion, in power, chemical, steel, metallurgy, papermaking, traffic control and securities finance and other fields has a very broad application prospect. It can provide enterprises with high speed, timely real-time data services, to the rapidly changing real-time data to carry on the long-term effective history storage, is a factory control layer (fieldbus, DCS, PLC, etc) and production management system of the connection between the bridge, also process simulation, advanced control, online optimization, fault diagnosis system data platform. OpenPlant real-time database system used in today's advanced technology and architecture, can realize safe, stable and field each control system of the