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Introduction to DBMS Functions

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Various DBMS Functions

Given below are the various DBMS Functions:

1. Integrity

There are several rules for DBMS, and the structure of the Database is designed in such a way to manage the data with proper rules and security. This feature enables DBMS to follow all the protocols set for the database and manage the data effectively. There are no redundant files in the database as the rules are setup to always keep the updated data in DBMS. Also, there are no inconsistent data in the database. Data dictionary helps to promote data integrity in the database management systems.

2. Concurrency

If multiple users are logging into the same database simultaneously, the database does not show any lagging while running the queries and returns the results in the same speed. This feature of concurrency helps multiple users to work and get results if it is a large database. As a result, the work is completed faster, and many users benefit from the same. Several algorithms are in place to make different users work on the same database.

3. Data Description

A data dictionary is provided by the database where all the database descriptions are added that helps the users to figure out the newer terms and add specific terms to the query and to the database. All the information about data elements and relationships is stored in the data dictionary that helps users check the relevant information. DBMS does the work for the users, and hence users need not enter the relationships and relevant coding in the database. Whenever any changes happen in the data dictionary, the structure is automatically modified, and thereafter users will be accessing the changed structure of the database.

4. Security 5. Recovery and Backup of Data

DBMS is managed in such a way that the database processes the backup automatically and recovers the data if any data loss happens. Also, logs are present in the database to know the operations in DBMS so that it is easy to know what changes have been made to the database and who have done the changes. Automated methods are in place for DBMS to create and manipulate the data. Once the initial setup is done, it is easy to do the data insertion and backup of data. Nowadays, there are routine data checking and restoring in the database. Whenever there is a failure in the database, data is recovered easily, which again proves the database’s integrity in the system.

6. Access Languages and APIs

Query language is used to access the data in the database. Writing queries are easy as users need not specify how it should be done as DBMS will take care of the same. Structured Query Language or SQL is the most used language in the database as all vendors support this language in their database.

7. Data Transformation

When user enters data into the database, it is changed into a required structure by DBMS. Hence, users need not worry about the logical or physical data format as DBMS satisfies users requirements by transforming into the logical format as per the user’s demand. The date is in a different format in various countries, and the DBMS system manages the date format based on the country code.

8. Data Storage 9. Database Communication

DBMS accept the users from various applications or through web browsers in the system. This communication is achieved in the system with the help of predefined reports in the websites that are published with the help of DBMS. Screen forms are available in the web browser where the end-users should answer queries in the specific web browser. Third-party communication is also available where information can be distributed through emails.

Features of DBMS Functions

Given below are the features of DBMS Functions:

Metadata is described using a user-accessible catalog, and a DBMS library management system is available in DBMS.

Data abstraction and data security are other features, along with independence in choosing the relevant data.

We can also log and audit the necessary data activities based on the framework.

DBMS provides enough support for concurrency and any database actions.


DBMS is good for large systems where data can be easily managed along with flexibility and data integrity in the system. It has a good backup system as well that helps in securing all the data in the database. In addition, data storage and querying is easy in DBMS when compared to other databases.

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This is a guide to DBMS Functions. Here we discuss the introduction, various DBMS functions and features for better understanding. You may also have a look at the following articles to learn more –

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