Difference Between DBMS and Database
A database is a system that makes it easy to organize, store and retrieve large amounts of data. In other words, a database is an organized data packet (in a characteristic way usually in digital form) for one or more users. Databases, often shortened as DB, are classified as per their content, like document- text, bibliographic and statistical. But a DBMS (Database System Management) is really the whole system used to manage databases that allow digital database content storage, the creation / maintenance of data, search and other functions. Nowadays, a database is useless if a DBMS is not associated with it for accessing its data. But increasingly, the term ‘database’ is used as shorthand for the database management system.
A database may contain different levels of abstraction in its architecture. Usually three levels: internal, conceptual and external constitute the database architecture. The conceptual level is a medium of communication between the inner and outer levels. The internal level defines how data is physically stored. The external level deals with how users see the data. A simple database can have multiple views. It provides a single view of the database regardless of how it is stored or seen. There are several types of databases such as Analytical database, Distributed databases and Data warehouses. Databases (rather relational databases) have tables made up of rows and columns like an Excel spread sheet. Each column is an attribute, whereas each row represents a single record. For example, in a database, which stores information of employee of a company, the columns may contain the employee name, employee ID and salary, while a single row represents a single employee.
DBMS, sometimes just called a database manager, is a collection of computer programs that is dedicated to the management (that is to say the organization, storage and recovery) of all databases that are installed in a system (that is to say the hard drive or network). There are different types of database management systems that exist in the world and some of them are designed for the proper management of databases configured for specific purposes. The most business popular Database Management Systems are Oracle, DB2 and Microsoft’s Access. All these products provide a means for allocating different levels of privileges for different users, making it possible for a DBMS to be controlled by a central administrator or simply be allocated to several different people. There are four important elements in any management system database. They are data structures, modeling language, query language and mechanism for transactions. The database language in DBMS is defined by modeling language. Currently several approaches as object, hierarchal, relational and network are in practice. The data structures organize the data as individual files, folders, fields and their definitions and objects such as visual mass media. Security of database in Data Query Language is maintained by checking the login data, and accessing rights and protocols for different users. SQL is a query language that is used in Relational Database Management Systems. There is a mechanism that allows multiplicity and transactions help concurrency. This mechanism will ensure that same record will not be changed by multiple users at the same time maintaining the integrity of data in tact. DBMSs have other advantages and they provide backups too.
The difference between DBMS and Database
A database is a collection of organized data and the system that manages a database is called a database management system. The database holds the records, fields and data cells. The DBMS is the tool used to manipulate data within the database. However, the database management system increasingly uses term database as shorthand. To make a simple distinction consider the operating system and individual files stored in the system. To modify and access files you need an operating system. Similarly, to manipulate stored databases, you need a DBMS.