What does database sharing mean?

A database is a "warehouse that organizes, stores and manages data according to data structure". It is a collection of large amounts of data that is stored in a computer for a long time, is organized, shareable, and unified management.

A database is a collection of data that is stored together in a certain way, can be shared with 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. Users can add, query, update, delete and other operations on the data in the files.

Characteristics of database system

1. Data structure

2. High data sharing, low redundancy, and easy expansion

3. High data independence

4. Data is uniformly managed and controlled by DBMS

Sharing of database

Because the data is It is oriented to the whole, so data can be shared and used by multiple users and multiple applications, which can greatly reduce data redundancy, save storage space, and avoid incompatibilities and inconsistencies between data.

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