Database
database (dataBase, DB) is a collection of long-term storage in the computer, organized, sharable data.
Data in the database according to a certain mathematical model of organization, description and storage, has less redundancy, higher data independence and ease of scalability, and can be shared by various users.
Database management system software
DBMS (Database Management System) is a large-scale software for manipulating and managing a database, used to create, use and maintenance of the database, referred to as the DBMS .
It unified database management and control, in order to ensure the security and integrity of the database.
Users, database administrators perform database maintenance by dbms DBMS data by accessing the database.
It allows multiple applications and users in different ways to different times or at the same time to establish, modify and query a database.
Most DBMS provides data definition language DDL (Data Definition Language) and data manipulation language DML (the Data Manipulation Language) , the structure and mode permissions for user-defined database constraints, to achieve the additional data, delete files.
Database management system is the core database system is a database management software.
Database management system is to achieve the abstract sense the user data processing logic, computer software specifically converted into a physical data processing.
With database management system, users can process data in an abstract sense, without regard to the data in the computer layout and physical location .
Common database management software: . Oracle oracle, IBM's db2, sql server, Access, MySQL ( open source, free, cross-platform)
database system
database system DBS (Data Base System, referred to as DBS) usually consists of software, databases and data management who formed part.
The software includes an operating system, various host languages, utilities, and database management systems.
Unified database managed by the database management system, data insertion, modification, and retrieval have to be carried out by database management systems.
Data administrator is responsible for creating, monitoring and maintenance of the entire database, the data can be used by any person is entitled to effective use.