What are the characteristics of the three stages of the emergence and development of database technology?

1, in the mid-1960s, database technology was used to solve the problem of file processing system. At that time, the database processing technology was still very fragile, and it was often impossible to submit applications.

2. The birth of relational model in 1970s provided a standard method for database experts to construct and process databases, and promoted the development and application of relational databases. 1979, Ashton-Tate company introduced the microcomputer product dBase, and called it the relational database management system. Since then, database technology has been transplanted to personal computers.

3. From the mid-1980s to the late 1980s, end users began to use LAN technology to connect independent computers into a network, and terminals shared databases, thus forming a new multi-user data processing mode, called client/server database structure.

Database technology is being used to combine with internet technology to publish database data on intranet, departmental LAN and even World Wide Web.

Extended data

In the history of database development, database has experienced various stages of development, such as hierarchical database, network database and relational database, and database technology has developed rapidly in all aspects.

Especially relational database has become the most important database product at present. Since 1980s, almost all the new database products of database manufacturers have supported relational databases, and even some non-relational database products have almost interfaces supporting relational databases. This is mainly because the traditional relational database can better solve the problem of managing and storing relational data.

With the development of cloud computing and the arrival of the era of big data, relational databases can't meet the demand more and more, mainly because more and more semi-relational and non-relational data need to be stored and managed by databases. At the same time, the emergence of new technologies such as distributed technology also puts forward new requirements for database technology, so more and more non-relational databases begin to appear.

This kind of database is very different from the traditional relational database in design and data structure. They emphasize the high concurrent reading and writing of database data and the storage of big data. This kind of database is called NoSQL (not just SQL) database. However, the traditional relational database still maintains strong vitality in some traditional fields.

Baidu encyclopedia-database

Baidu Encyclopedia-Database Technology