It is a large number of data sets that are stored in computers for a long time, organized, enjoyed and managed in a unified way. A database is a collection of data stored together in some way, which can be shared by multiple users, has as little redundancy as possible, and is independent of applications. It can be regarded as an electronic filing cabinet-a place where electronic files are stored, and users can add, query, update and delete the data in the files.
A database is an organized and shared data set stored in a computer for a long time. The data in the database is organized, described and stored in a certain data model, which has the characteristics of minimum redundancy, high data independence and expansibility, and can be shared by multiple users in a certain range.
Technical hotspots of database application
Wanfang Database is a professional academic database with the same reputation as China HowNet, which was developed by China Institute of Science and Technology Information and Wanfang Database Center under Wan Fang Data Company. It covers periodicals, papers, academic achievements, conference minutes and academic conference papers.
The database of enterprises, companies and products in China was founded in 1988, and was jointly developed by nearly 100 information organizations in Wan Fang Data United Nations. It is a shortcut for domestic and foreign industrial and commercial circles to understand the China market. The main types of customers include companies, information institutions, trading companies in China and university libraries.
The contents include Chinese national standards, building standards, building materials standards, industry standards, international standards, international electrotechnical standards, European standards, national standards of the United States, Britain, Germany, France and Japanese industry standards.
Above content reference: Baidu Encyclopedia-Database