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Thursday, March 3, 2016

Database Management System (DBMS)

Database Management System (DBMS) is used by the users to access the data stored in database files. A DBMS is also used to perform  administrative tasks on the databases and objects contained within the database.

DBMS is a collection of applications that allows users and other programs to capture and analyze data by providing additional functionality like reporting services to help you create, deploy, and manage reports for your organization.
A RDBMS is a software system designed to allow the definition, creation, querying, and updating of data stored in relational databases.



A few examples of RDBMS include; Microsoft SQL Server, Microsoft Access, and MySQL

Database servers
Databases are stored on database servers which are dedicated physical or virtual servers that host the database files and provide high-level performance for users who are accessing the data.
Database servers contain the DBMS used to manage the data and administer the SQL Server environment.
A database server can have one default instance and several named instances of SQL Server. A SQL Server instance is a copy of the sqlservr.exe program that runs as a Windows operating system service.

Often multiple database servers are deployed to provide high availability and improve performance


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