DBMS ( Database Management system): DBMS is a program or software that is used to control and manage the database. It is a large, complex program or software that is used to manage and administer the stored databases and it is a computer based system to keep records. Query language such as SQL is used along with DBMS to interact with the database. Work of a DBMS: DBMS is used to Create Database which enables the user to store or contain a large amount of data. DBMS is used to manage the data definitions in database dictionary. DBMS provides security to the user by having network security such as firewalls which monitors internet traffic and using an Intrusion Detection System (IDS) device that blocks unauthorized access. The database can be accessed by more than one user simultaneously. DBMS is used for creating and managing structures to store the large volume of data. Data safety and integrity is preserved by DBMS as it provides backup and recovery. Data presented in database can be modified (alter, delete) using DBMS. DBMS is used to create indexes which act as a supporting structure for speedy retrieval of queries. DBMS decreases data redundancy and increases data consistency which maintains integrity rules. Benefits of DBMS in organizations: The DBMS makes it probable to give rapid answers to ad-hoc queries. It gives better data integration for the organization operations. It offers a framework for better enforcement of data privacy and security policies. Difference between logical and physical views of data: Logical view Physical view The logical view of a database program represents data in a format. The physical view deals with the physical arrangement, actual arrangement and location of data in the direct access storage devices. The logical view presents data as end users would observe them. The user uses the physical view to create effective use of storage and processing resources. Database contains many logical views. Database contains only one physical view. It refers to the way user views data It refers to the way the data are physically stored and processed. Three operations of a RDBMS: Three operations are used to develop useful sets of data in the RDBMS...

EBK ESSENTIALS OF MIS

12th Edition

ISBN: 8220101459305

Author: LAUDON

Publisher: PEARSON

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The simultaneous occurrence of two or more operations is called concurrence and the situation is called concurrency. In concurrency, the function of one operation can affect the function of the other and put data integrity at risk. Hence, management for …

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DBMS (Database Management system):

DBMS is a program or software that is used to control and manage the database. It is a large, complex program or software that is used to manage and administer the stored databases and it is a computer based system to keep records.

Query language such as SQL is used along with DBMS to interact with the database.

Work of a DBMS:

DBMS is used to Create Database which enables the user to store or contain a large amount of data.

DBMS is used to manage the data definitions in database dictionary.

DBMS provides security to the user by having network security such as firewalls which monitors internet traffic and using an Intrusion Detection System (IDS) device that blocks unauthorized access.

The database can be accessed by more than one user simultaneously.

DBMS is used for creating and managing structures to store the large volume of data.

Data safety and integrity is preserved by DBMS as it provides backup and recovery.

Data presented in database can be modified (alter, delete) using DBMS.

DBMS is used to create indexes which act as a supporting structure for speedy retrieval of queries.

DBMS decreases data redundancy and increases data consistency which maintains integrity rules.

Benefits of DBMS in organizations:

The DBMS makes it probable to give rapid answers to ad-hoc queries.

It gives better data integration for the organization operations.

It offers a framework for better enforcement of data privacy and security policies.

Difference between logical and physical views of data:

Logical view Physical view
The logical view of a database program represents data in a format. The physical view deals with the physical arrangement, actual arrangement and location of data in the direct access storage devices.
The logical view presents data as end users would observe them. The user uses the physical view to create effective use of storage and processing resources.
Database contains many logical views. Database contains only one physical view.
It refers to the way user views data It refers to the way the data are physically stored and processed.

Three operations of a RDBMS:

Three operations are used to develop useful sets of data in the RDBMS...

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Logical view	Physical view
The logical view of a database program represents data in a format.	The physical view deals with the physical arrangement, actual arrangement and location of data in the direct access storage devices.
The logical view presents data as end users would observe them.	The user uses the physical view to create effective use of storage and processing resources.
Database contains many logical views.	Database contains only one physical view.
It refers to the way user views data	It refers to the way the data are physically stored and processed.

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