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This article mainly introduces what is the relationship between DB, DBMS and DBS. It is very detailed and has a certain reference value. Friends who are interested must finish it!

The relationship among DB, DBMS and DBS is that DBS includes DB and DBMS. DBS refers to the database system, the database system generally consists of four parts, namely: 1, database; 2, hardware; 3, software; 4, personnel.

The relationship among DB, DBMS and DBS: DBS includes DB and DBMS.

Parsing:

DB: refers to datebase (database)

DBS: refers to datebase systerm (database system)

DBMS: refers to datebase mangement systerm (database management system)

The database is the warehouse for storing data, and the database management system is used to manage the database. Among them, database system is a general name, including database, database management system, database management personnel and so on, is the largest category.

The database system generally consists of four parts:

(1) Database (database,DB)

A database is a collection of organized and shareable data stored in a computer for a long time. The data in the database is organized, described and stored according to a certain mathematical model, with less redundancy, high data independence and easy expansibility, and can be shared by all kinds of users.

(2) hardware

Various physical devices that make up a computer system, including external devices required for storage. The configuration of hardware should meet the needs of the whole database system.

(3) Software

Including operating system, database management system and application programs.

Database management system (database management system,DBMS) is the core software of the database system, which works with the support of the operating system to solve how to organize and store data scientifically and how to obtain and maintain data efficiently.

(4) personnel

There are mainly four categories. The first category is system analysts and database designers, the second category is application programmers, the third category is end users, and the fourth category of users are database administrators.

The specific duties of DBA include: the information content and structure of the specific database, determining the storage structure and access strategy of the database, defining the security requirements and integrity constraints of the database, monitoring the use and operation of the database, and being responsible for the performance improvement of the database, the reorganization and reconstruction of the database, in order to improve the performance of the system.

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