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数据库(DB)是存储在一起的相关数据的集合,是为了实现一定的目的而按某种规则存储数据的“仓库”。这些数据是结构化的,没有不必要的冗余,并为多种应用服务;数据的存储独立于使用它的程序;对数据库插入新数据,修改和检索原有数据均能按一种公
Database (DB) is a collection of related data stored together, which is a “warehouse” that stores data according to a certain rule for a certain purpose. These data are structured, have no unnecessary redundancy, and serve a wide range of applications; the storage of data is independent of the program that uses it; inserting new data into the database, modifying and retrieving the original data