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| What are the Advantages of DBMS |
The software that enables users to define, create, maintain, and regulate database access is known as a database management system (DBMS).
The ability to create, delete, read and update data in databases is provided by DBMS. It serves as a layer between software and data.
Advantages of DBMS
Database management systems have many advantages over file-based data management systems. The following list includes some of these advantages:
Reducing Data Redundancy
Multiple files were stored in various locations within a system and across different systems in the file-based data management systems. As a result, there were occasionally multiple copies of the same file, which caused data redundancy.
As a database only contains one copy of the information and updates are immediately reflected. This means that there is no possibility duplicate data.
Sharing of Data
A database enables users to share data with each other. For access to the data, there are different levels of authorization.
Additionally, the database can be accessed and shared by a large number of remote users simultaneously.
Data Integrity
Data integrity refers to the accuracy and consistency of data stored in a database, a critical aspect of database management. A DBMS contains many databases, so data integrity is crucial. These databases all contain information that is accessible by numerous users. Therefore, it is crucial to guarantee that the data is accurate and consistent across all databases and for all users.
Data Security
In a database, data security is a key concept. Authorized users must verify their identities using a username and password to gain access to the database, ensuring that only those with proper credentials can utilize it. The integrity constraints should never be violated by allowing unauthorized users to access the database.
Privacy
The privacy constraint in a database specifies that only authorized users are permitted access to the database. A user can only see information that he is authorized to view due to different levels of database access. For instance, on social networking sites, access restrictions vary depending on which accounts a user wants to access.
Backup and Recovery
Database management systems automatically manage backup and recovery processes, relieving users of the need for frequent manual backups. With these systems in place, users can rely on automated backups provided by the DBMS, eliminating the need for regular manual backup tasks. Additionally, in the event of a crash or system failure, the DBMS restores the database to its prior state.
Data Consistency
In a database, there is no data redundancy, which ensures data consistency. All data is presented consistently throughout the database, and it is the same for each user accessing it.
Additionally, data inconsistencies are avoided as any changes made to the database are immediately visible to all users.
