DBMS Concepts

DBMS Tutorial Components of DBMS. Applications of DBMS The difference between file system and DBMS. Types of DBMS DBMS Architecture DBMS Schema Three Schema Architecture. DBMS Languages.

DBMS ER Model

ER model: Entity Relationship Diagram (ERD) Components of ER Model. DBMS Generalization, Specialization and Aggregation.

DBMS Relational Model

Codd’s rule of DBMS Relational DBMS concepts Relational Integrity Constraints DBMS keys Convert ER model into Relational model Difference between DBMS and RDBMS Relational Algebra DBMS Joins

DBMS Normalization

Functional Dependency Inference Rules Multivalued Dependency Normalization in DBMS: 1NF, 2NF, 3NF, BCNF and 4NF

DBMS Transaction

What is Transaction? States of transaction ACID Properties in DBMS Concurrent execution and its problems DBMS schedule DBMS Serializability Conflict Serializability View Serializability Deadlock in DBMS Concurrency control Protocols

Difference

Difference between DFD and ERD

Misc

Advantages of DBMS Disadvantages of DBMS Data Models in DBMS Relational Algebra in DBMS Cardinality in DBMS Entity in DBMS Attributes in DBMS Data Independence in DBMS Primary Key in DBMS Foreign Key in DBMS Candidate Key in DBMS Super Key in DBMS Aggregation in DBMS Hashing in DBMS Generalization in DBMS Specialization in DBMS View in DBMS File Organization in DBMS What Is A Cloud Database What Is A Database Levels Of Locking In DBMS What is RDBMS Fragmentation in Distributed DBMS What is Advanced Database Management System Data Abstraction in DBMS Checkpoint In DBMS B Tree in DBMS BCNF in DBMS Advantages of Threaded Binary Tree in DBMS Advantages of Database Management System in DBMS Enforcing Integrity Constraints in DBMS B-Tree Insertion in DBMS B+ Tree in DBMS Advantages of B-Tree in DBMS Types of Data Abstraction in DBMS Levels of Abstraction in DBMS 3- Tier Architecture in DBMS Anomalies in Database Management System Atomicity in Database Management System Characteristics of DBMS DBMS Examples Difference between Relational and Non-Relational Databases Domain Constraints in DBMS Entity and Entity set in DBMS ER Diagram for Banking System in DBMS ER Diagram for Company Database in DBMS ER Diagram for School Management System in DBMS ER Diagram for Student Management System in DBMS ER Diagram for University Database in DBMS ER Diagram of Company Database in DBMS Er Diagram Symbols and Notations in DBMS How to draw ER-Diagram in DBMS Integrity Constraints in DBMS Red-Black Tree Deletion in DBMS Red-Black Tree Properties in DBMS Red-Black Tree Visualization in DBMS Redundancy in Database Management System Secondary Key in DBMS Structure of DBMS 2-Tier Architecture in DBMS Advantages and Disadvantages of Binary Search Tree Closure of Functional Dependency in DBMS Consistency in Database Management System Durability in Database Management System ER Diagram for Bank Management System in DBMS ER Diagram for College Management System in DBMS ER Diagram for Hotel Management System in DBMS ER Diagram for Online Shopping ER Diagram for Railway Reservation System ER Diagram for Student Management System in DBMS Isolation in DBMS Lossless Join and Dependency Preserving Decomposition in DBMS Non-Key Attributes in DBMS Data Security Requirements in DBMS DBMS functions and Components What is Homogeneous Database? DBMS Functions and Components Advantages and Disadvantages of Distributed Database

Advantages of DBMS

A Database Management System (DBMS) is a collection of programs which lets the end-users to manage and control the database.

Database systems use query language for accessing, storing, and maintaining the data in the databases. DBMS is a layer presenting between the program and the data. Data security is the best feature of the database systems.

Various advantages or benefits of the database management system are discussed below:

1. Simple

The database management system is simple to understand for its users. It gives a clear conceptual or logical view of the specified data. In the database systems, the user can easily implement the insert and delete operations on the specified data. 

2. Data Redundancy

Redundancy of the data is the first advantage of the database systems. In the database systems, duplicacy of data is eliminated or removed because the whole data is stored at a centralized location. So, there is no data redundancy in the database systems.

3. Data Consistency

If there is no data redundancy in the database systems, then the data consistency automatically maintains. Data consistency occurs when the two values are entered for the same data in the database.

As the data is centralized, so the updated data is same for all those users who access it. That's why the consistency of the data is also maintained in the database management systems.

4. Data Integrity

Data integrity says that the data is consistent as well as accurate for all the database users in the database systems. Database systems provide various integrity constraints for maintaining data integrity.

5. Data Security

It is the main advantage which allows users to use it. Database systems provide high security to the data. A database system also provides various security policies.

The data security features of DBMS allow only authorized users to access the confidential and necessary data of an organization. DBMS provides the username and password to the users to use their databases.

6. Data Backup and Recovery

In today's time, data loss is a big problem for all companies and organizations. So, DBMS provides a strong framework for data backup and recovery.

In database systems, the user does not need to back up their data manually, as it allows automatic backup and recovery of the database.

If any system fails or crashes due to some reason, DBMS restores the database to its previous condition by this concept.

7. Data Sharing

Sharing of the data is also another important benefit of the database management systems. Using a DBMS environment, end-users can easily share confidential data or information among themselves.

It also allows data sharing for those users who work from remote locations.

8. Concurrency Control

In database systems, concurrency control means the execution of multiple transactions at the same time. DBMS provides the various concurrency control protocols for ensuring the atomicity and serializability of the concurrent data access.

9. Low Maintenance Cost of DBMS Software

The cost of setting up the database systems might be high, but their maintenance cost is very less. After purchasing the database systems, users do not need large money to maintain them.

10. Data Abstraction

Database systems abstract those data and information from the users, which are not useful for the end-users. These systems show the necessary data to the users.

11. Support Multi-Access

Database systems lets multiple users to access the same data from different locations at the same time. Due to this, the working speed on the database is increase.