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hw5-3 2019339900036-张魁 Version 0
👤 Author: by 1824580281qqcom 2019-11-07 02:04:44
The database is a warehouse that organizes, stores and manages data according to the data structure. It originated more than 60 years ago. With the development of information technology and markets, especially after the 1990s, data management is no longer just storage and management data. It is transformed into a variety of data management methods that users need. There are many types of databases. From the simplest tables that store various types of data to large database systems that can store large amounts of data, they have been widely used in various aspects

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