数据库与数据库管理系统有什么区别？？
Oracle MySql SQL Server 等这些是数据库，那么数据库管理系统有哪些？？
SQL/Plus和SQL Developer算数据库管理系统吗？？？
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数据库管理系统(Database Management System)是一种操纵和管理数据库的大型软件，用于建立、使用和维护数据库，简称DBMS。数据库（Database）是按照数据结构来组织、存储和管理数据的仓库.
Oracle MySql SQL Server 都是数据库,并配套有数据库管理系统
SQL/Plus和SQL Developer都是操纵数据库的客户端.
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数据库是存储数据的仓库，就像我们的硬盘
而数据库管理系统是管理和控制数据库的软件，就像管理硬盘的 windows系统
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A database management system (DBMS) is software that controls the storage, organization, and retrieval of data. Typically, a DBMS has the following elements:
■Kernel code
This code manages memory and storage for the DBMS.
■Repository of metadata
This repository is usually called a data dictionary.
■Query language
This language enables applications to access the data.
■Hierarchical
A hierarchical database organizes data in a tree structure. Each parent record has one or more child records, similar to the structure of a file system.
■Network
A network database is similar to a hierarchical database, except records have a many-to-many rather than a one-to-many relationship.
A database is a set of files, located on disk, that store data. These files can exist independently of a database instance.
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